Tradition says that disciple Philip preached in Phrygia and died a martyr at Hierapolis. Philip came from Bethsaida, the town from which Peter and Andrew came (John 1:44). The likelihood is that he, too, was a fisherman. Although the first three Gospels record his name (Matthew 10:3; Mark 3:18; Luke 6:14; Acts 1:13), it is in the Gospel of John that Philip becomes a living personality.

 Scholars disagree on Philip. In Acts 6:5, we have Philip as one of the seven ordained deacons. Some say this is a different Philip. Some believe this is the Apostle. If this is the same Philip, then his personality came more to life because he had a successful campaign in Samaria. He led the Ethiopian eunuch to Christ (Acts 8:26). He also stayed with Paul in Ceasarea (Acts 21:8) and was one of the major figures in the missionary enterprise of the early church.

 The Gospel of John shows Philip as one of the first of many to whom Jesus addressed the words, "Follow Me." When Philip met Christ, he immediately found Nathanael and told him that "we have found him, of whom Moses … and the prophets, did write." Nathanael was skeptical. But Philip did not argue with him; he simply answered, "Come and see." This story tells us two important things about Philip. First, it shows his right approach to the skeptic and his simple faith in Christ. Second, it shows that he had a missionary instinct.

 Philip was a man with a warm heart and a pessimistic head. He was one who would very much like to do something for others, but who did not see how it could be done. Yet, this simple Galilean gave all he had. In return God used him. It is said that he died by hanging. While he was dying, he requested that his body be wrapped not in linen but in papyrus for he was not worthy that even his dead body should be treated as the body of Jesus had been treated. The symbol of Philip is a basket, because of his part in feeding of the five thousand. It is he that stressed the cross as a sign of Christianity and victory.

Scriptures: Philip and Nathaniel

John 1:43-47 “The next day Jesus decided to go to Galilee. He found Philip and said to him, “Follow me.”  Now Philip was from Bethsaida, the city of Andrew and Peter.  Philip found Nathanael and said to him, “We have found him of whom Moses in the Law and also the prophets wrote, Jesus of Nazareth, the son of Joseph.”  Nathanael said to him, “Can anything good come out of Nazareth?” Philip said to him, “Come and see.”  Jesus saw Nathanael coming toward him and said of him, “Behold, an Israelite indeed, in whom there is no deceit!”
Once more we see that Jesus “found Philip and said to him ‘follow me.’”  Jesus calls us just as He did the disciples or apostles and Philip brought Nathaniel to Jesus just as Andrew brought Peter.  Philip understood the Scriptures that spoke of Jesus saying “We have found him of whom Moses in the Law (Duet 18:18) and also the prophets (Isaiah 52-53; Psalm 21-23) wrote, Jesus of Nazareth, the son of Joseph.”  Philip saw what the religious leaders could not see, that the Scriptures clearly testified about Jesus and even though they had studied them diligently, they refused to see that it was Jesus Who fulfilled them (John 5:39).
James the Elder
Source: artbible.info
James, the Elder, Boanerges, son of Zebedee and Salome, brother of John the Apostle; a fisherman who lived in Bethsaida, Capernaum and Jerusalem. He preached in Jerusalem and Judea and was beheaded by Herod, AD 44 (Acts 12:1,2). He was a member of the Inner Circle, so called because they were accorded special privileges. The New Testament tells us very little about James. His name never appears apart from that of his brother, John. They were an inseparable pair (Mark 1:19-20; Matthew 4:21; Luke 5:1-11).
He was a man of courage and forgiveness-a man without jealousy, living in the shadow of John, a man of extraordinary faith. He was the first of the twelve to become a martyr. His symbol is three shells, the sign of his pilgrimage by the sea.
John
Source: catholicsaints.info

John Boanerges, son of Zebedee and Salome, brother of James, the Apostle. he was known as the Beloved Disciple. A fisherman who lived in Bethsaida, Capernaum and Jerusalem, he was a member of the Inner Circle. He wrote the Gospel of John, I John, II John, III John and Revelation. He preached among the churches of Asia Minor. Banished to the isle of Patmos, he was later freed and died a natural death. John was one of the prominent Apostles. He is mentioned in many places in the New Testament. He was a man of action; he was very ambitious; and a man with an explosive temper and an intolerant heart. His second name was Boanerges, which means son of Thunder. He and his brother, James, came from a more well-to-do family than the rest of the 12 Apostles. Since his father had hired servants in his fishing business (Mark 1:20) he may have felt himself above the rest. He was close to Peter. They were acting together in the ministry. Peter, however, was always the spokesman for the band.
John mellowed with time. At the latter part of his life, he had forgotten everything, including his ambition and explosive temper, except his Lord's command of love.
It is said that an attempt was made on his life by giving him a chalice of poison from which God spared him. He died of natural causes. A chalice with a snake in it is his symbol.
Peter
Source: Wikimedia Commons
Simon Peter, son of Jonas, was a fisherman who lived in Bethsaida and Capernaum. He did evangelistic and missionary work among the Jews, going as far as Babylon. He was a member of the Inner Circle and authored the two New Testament epistles which bear his name. Tradition says he was crucified, head downward, in Rome.
In every apostolic list, the name Peter is mentioned first. However, Peter had other names. At the time of Christ, the common language was Greek and the family language was Hebrew. So his Greek name was Simon (Mark 1:16; John 1:40, 41). His Hebrew name was Cephas (1 Corinthians 1:12; 3:22; 9:5 and Galatians 2:9). The Greek meaning of Simon is rock. The Arabic meaning of Cephas is also rock.
By trade, Peter was a fisherman. He was a married man (1Corinthians 9:5) and his home was Capernaum. Jesus probably made His headquarters there when He visited Capernaum. Peter was also a Galilean as was typical of many of the other disciples. Josephus described the Galileans this way, "They were ever fond of innovation and by nature disposed to change and delighted in sedition. They were ever ready to follow the leader and to begin an insurrection. They were quick in temper and given to quarreling and they were very chivalrous men." The Talmud says this of the Galileans, "They were more anxious for honor than for gain, quick-tempered, impulsive, emotional, easily aroused by an appeal to adventure, loyal to the end." Peter was a typical Galilean. Among the twelve, Peter was the leader. He stands out as a spokesman for all the twleve Apostles. It is he who asked the meaning of the difficult saying in Matthew 15:15. It is he who asked how often he must forgive. It is he who inquired about the reward for all of those who follow Jesus. It is he who first confessed Jesus and declared Him as the Son of the Living God. It is he who was at the Mount of Transfiguration. It is he who saw Jairus' daughter raised to life. Yet, it is he who denied Christ before a maiden. He was an Apostle and a missionary who laid down his life for his Lord. It is true, Peter had many faults, but he had always the saving grace of the loving heart. No matter how many times he had fallen and failed, he always recovered his courage and integrity.
Peter was martyred on a cross. Peter requested that he might be crucified head downward for he was not worthy to die as his Lord had died. His apostolic symbol is a cross upside down with crossed keys.

Scriptures: Peter, James and John

Matt 17:1-2 “Jesus took with him Peter and James, and John his brother, and led them up a high mountain by themselves.  And he was transfigured before them, and his face shone like the sun, and his clothes became white as light.”
These men were in the inner circle of Jesus because He often took them aside as He did in the Transfiguration and let them see things that the others did not and told them things that He didn’t tell the others as he did in the Transfiguration.

James the Lesser or the Younger
Source: Pinterest
James, the Lesser or Younger, son of Alpheus, or Cleophas and Mary, lived in Galilee. He was the brother of the Apostle Jude.
According to tradition he wrote the Epistle of James, preached in Palestine and Egypt and was crucified in Egypt. James was one of the little-known disciples. Some scholars believe he was the brother of Matthew, the tax collector. James was a man of strong character and one of the most fiery type. Tradition tells us that he also died as a martyr and his body was sawed in pieces. The saw became his apostolic symbol.

Simon the Zealot
Source: catholic.org
Simon, the Zealot, one of the little-known followers called the Canaanite or Zelotes, lived in Galilee. Tradition says he was crucified.
In two places in the King James Version he is called a Canaanite (Matthew 10:4; Mark 3:18). However in the other two places he is called Simon Zelotes (Luke 6:15; Acts 1:13).
The New Testament gives us practically nothing on him personally except that it says he was a Zealot. The Zealots were fanatical Jewish Nationalists who had heroic disregard for the suffering involved and the struggle for what they regarded as the purity of their faith. The Zealots were crazed with hatred for the Romans. It was this hate for Rome that destroyed the city of Jerusalem. Josephus says the Zealots were reckless persons, zealous in good practices and extravagant and reckless in the worst kind of actions.
From this background, we see that Simon was a fanatical Nationalist, a man devoted to the Law, a man with bitter hatred for anyone who dared to compromise with Rome. Yet, Simon clearly emerged as a man of faith. He abandoned all his hatred for the faith that he showed toward his Master and the love that he was willing to share with the rest of the disciples and especially Matthew, the Roman tax collector.

Simon, the Zealot, the man who once would have killed in loyalty to Israel, became the man who saw that God will have no forced service. Tradition says he died as a martyr. His apostolic symbol is a fish lying on a Bible, which indicates he was a former fisherman who became a fisher of men through preaching.

Scriptures: James, Son of Alphaeus and Simon the Zealot

Acts 1:12-14 “Then they returned to Jerusalem from the mount called Olivet, which is near Jerusalem, a Sabbath day’s journey away.  And when they had entered, they went up to the upper room, where they were staying, Peter and John and James and Andrew, Philip and Thomas, Bartholomew and Matthew, James the son of Alphaeus and Simon the Zealot and Judas the son of James.  All these with one accord were devoting themselves to prayer, together with the women and Mary the mother of Jesus, and his brothers.”
When Jesus returned to heaven after His resurrection in His glorified body, the disciples went into “the upper room” which by Luke, the author of Acts, giving the name specifically as “the upper room,” may have been the same upper room where the Lord’s last Passover Meal was taken with the disciples.  Here we see the remaining two disciples, James the son of Alphaeus, so designated so that he may be differentiated from James the son of Zebedee, and Simon the Zealot all meeting together and “devoting themselves to prayer, together with the women and Mary the mother of Jesus, and his four brothers (James, Joseph, Simon, and Judas).
Judas
Source: crosswalk.com
Judas Iscariot, the traitor, was the son of Simon who lived in Kerioth of Judah. He betrayed Jesus for thirty pieces of silver and afterwards hanged himself (Matthew 26:14,16).
Judas, the man who became the traitor, is the supreme enigma of the New Testament because it is so hard to see how anyone who was so close to Jesus, who saw so many miracles and heard so much of the Master's teaching could ever betray him into the hands of his enemies.
His name appears in three lists of the 12 Apostles (Matthew 10:4; Mark 3:19; Luke 6:19). It is said that Judas came from Judah near Jericho. He was a Judean and the rest of the disciples were Galileans. He was the treasurer of the band and among the outspoken leaders.
It is said that Judas was a violent Jewish Nationalist who had followed Jesus in hope that through Him his nationalistic flame and dreams might be realized. No one can deny that Judas was a covetous man and at times he used his position as treasurer of the band to pilfer from the common purse. There is no certain reason as to why Judas betrayed his master; but it is not his betrayal that put Jesus on the cross-it was our sins. His apostolic symbol is a hangman's noose, or a money purse with pieces of silver falling from it.
Jude or Thaddeus
Source: Shrine of St. Jude
Jude, Thaddeus, or Lebbeus, son of Alpheus or Cleophas and Mary. He was a brother of James the Younger. He was one of the very little-known Apostles and lived in Galilee. Tradition says he preached in Assyria and Persia and died a martyr in Persia.
Jerome called Jude "Trinomious" which means "a man with three names." In Mark 3:18 he is called Thaddeus. In Matthew 10:3 he is called Lebbeus. His surname was Thaddeus. In Luke 6:16 and Acts 1:13 he is called Judas the brother of James. Judas Thaddeus also was called Judas the Zealot.
By character he was an intense and violent Nationalist with the dream of world power and domination by the Chosen People. In the New Testament records (John 14:22 NIV) he asked Jesus at the Last Supper, "But Lord, why do you intend to show yourself to us and not to the world?" Judas Thaddeus was interested in making Christ known to the world. Not as a suffering Saviour, however, but as ruling King. We can see plainly from the answer Jesus gave him, that the way of power can never be substituted for the way of love.
It is said that Jude went to preach the gospel in Edessa near the Euphrates River. There he healed many and many believed in the name of the Master. Jude went from there to preach the Gospel in other places. He was killed with arrows at Ararat. The chosen symbol for him is the ship because he was a missionary thought to be a fisherman.
Matthew or Levi
Source: Wikimedia Commons
Matthew, or Levi, son of Alpheus, lived in Capernaum. He was a publican or tax collector. He wrote the Gospel that bears his name. He died a martyr in Ethiopia.
The call of Matthew to the apostolic band is mentioned in Mark 2:14, Matthew 9:9; and Luke 5:27-28. From these passages, we learn that Matthew also was called Levi. It was a common custom in the Middle East at the time of Christ for men to have two names. Matthew's names mean "a gift of God." The name Levi could have been given to him by Jesus. It is likely that James the lesser, who was one of the twelve Apostles, was Matthew's brother, also the son of Alpheus. Although we know little about Matthew personally, the outstanding fact about him is that he was a tax collector. The King James Version calls him a publican, which in Latin is Publicanus, meaning engaged in public service, a man who handled public money, or a tax gatherer.
Of all the nations in the world, the Jews were the most vigorous haters of tax gatherers. To the devout Jew, God was the only one to whom it was right to pay tribute in taxes. To pay it to anyone else was to infringe on the rights of God. The tax collectors were hated not on religious grounds only but because most of them were notoriously unjust.
In the minds of many honest, Jewish men, these tax collectors were regarded as criminals. In New Testament times they were classified with harlots, Gentiles and sinners (Matthew 18:17; Matthew 21:31, 33; Matthew 9;10; Mark 2:15,16; Luke 5:30). Tax collectors had been known to assess duty payable at impossible sums and then offer to lend the money to travelers at a high rate of interest. Such was Matthew. Yet, Jesus chose a man all men hated and made him one of His men. It took Jesus Christ to see the potential in the tax collector of Capernaum.
Matthew was unlike the other 12 Apostles, who were all fishermen. He could use a pen, and by his pen he became the first man to present to the world, in the Hebrew language, an account of the teaching of Jesus. It is clearly impossible to estimate the debt that Christianity owes to this despised tax gatherer. The average man would have thought it impossible to reform Matthew, but to God all things are possible. Matthew became the first man to write down the teachings of Jesus. He was a missionary of the Gospel, who laid down his life for the faith of his Master. The apostolic symbol of Matthew is three money bags which reminds us that he was a tax collector before Jesus called him.

Scriptures: Matthew the Tax Collector

Matthew 9:9-10a “As Jesus passed on from there, he saw a man called Matthew sitting at the tax booth, and he said to him, “Follow me.” And he rose and followed him. And as Jesus reclined at table in the house.”
Once more we see Jesus tells one of the twelve “Follow me” which again testifies to the fact that Jesus chose the disciples or apostles and not the other way around.  Jesus told the disciples that “You did not choose me, but I chose you and appointed you that you should go and bear fruit and that your fruit should abide, so that whatever you ask the Father in my name, he may give it to you” (John 15:16).  Anyone that is a believer or follower of Christ is one that Christ Himself has chosen (Eph 1, 2) for it is not we who choose Him but He has chosen us.
Thomas Didymus
Source: antiochian.org
Thomas Didymus lived in Galilee. Tradition says he labored in Parthia, Persia, and India, suffering martyrdom near Madras, at Mt. St. Thomas, India.
Thomas was his Hebrew name and Didymus was his Greek name. At times he was called Judas. Matthew, Mark and Luke tell us nothing about Thomas except his name. However, John defines him more clearly in his Gospel. Thomas appeared in the raising of Lazarus (John 11:2-16), in the Upper Room (John 14:1-6) where he wanted to know how to know the way where Jesus was going. In John 20:25, we see him saying unless he sees the nailprints in Jesus' hand and the gash of the spear in His side he will not believe. That's why Thomas became known as Doubting Thomas.
Thomas became certain by doubting. By nature, he was a pessimist. He was a bewildered man. Yet, he was a man of courage. He was a man who could not believe until he had seen. He was a man of devotion and of faith. When Jesus rose, he came back and invited Thomas to put his finger in the nail prints in his hands and in his side. Here, we see Thomas making the greatest confession of faith, "My Lord and my God." Thomas' doubts were transformed into faith. Thomas was always like a little child. His first reaction was not to do what he was told to do and not to believe what he was asked to believe. The good news to him was always too good to be true. By this very fact Thomas' faith became great, intense and convincing. It is said that he was commissioned to build a palace for the king of India, and he was killed with a spear as a martyr for his Lord. His symbol is a group of spears, stones and arrows.

Scriptures: Doubting Thomas

John 20:24-25, 28 “Now Thomas, one of the Twelve, called the Twin, was not with them when Jesus came. So the other disciples told him, “We have seen the Lord.” But he said to them, “Unless I see in his hands the mark of the nails, and place my finger into the mark of the nails, and place my hand into his side, I will never believe [but when Thomas saw Jesus] ”Thomas answered him, “My Lord and my God!”  
I think we are too hard on Thomas because Thomas was ready to go up to Jerusalem and die with Christ (John 11:16) while the others tried to talk Jesus out of going back to Judea (John 11:8).
WHERE, AND HOW DID THEY DIE?
After Jesus's death, resurrection and ascension into heaven, his apostles had gone into far places such as Rome, Ethiopia, and even India, to spread the good new news. However, they themselves and the ones who follow the good news, were persecuted and put into their deaths.
In their ways of death, this the way that it is.
  1. Andrew = Crucified on an X-shaped cross
  2. Bartholomew or Nathanael = Flayed alive with knives
  3. James the elder = First apostle martyred
  4. James the lesser = Sawn in pieces
  5. John = Died of natural causes on the isle of Patmos
  6. Judas Iscariot = Hung himself
  7. Jude or Thaddeus = Killed with arrows
  8. Matthew or Levi = Martyred in Ethiopia
  9. Peter = Crucified upside-down on a cross
  10. Philip = Died by hanging
  11. Simon the Zealot = Died a martyrs death
  12. Thomas = Killed with a spear
And this is the map where they died.


CONCLUSION
The Last Supper.
They themselves are called by Christ to do one thing, which is to spread the good news. And they were called means they were repented and trusted by The Lord to do the job. They were the original 12 apostles and disciples of Christ in which they were called from their sinful and simple lives in order to spread God's blessings and thus, making the change in the world.

If God has called you then you can know you are called if you have repented and trusted in Christ.  If not, then you are not a disciple or follower of Christ and you only think you are.  You may not be an apostle but all who follow Christ are His disciples and we are commanded to make disciples of all people everywhere (Matt 28:18-20) and we are given the power and authority of Christ to do so (Acts 1:8).  This was not just for those in the first century but for all believers today.  I hope you will be a disciple of His and if you know of anyone else that is not saved, why haven’t you proclaimed the good news to them?

(With supplementary informations and acknowledgement from this following websites: BibleInfo.com and Jack Wellman - Patheos)