St. James
Meaning of the name: James is actually Jacob – don't ask me why the translators changed it. Jacob means “holder of the heel” or “supplanter.” At some sense he can be seen as such – when Jesus comes to Peter's home, it was Andrew who accompanied the Lord (together with James and John). Yet, later on, Jesus takes Peter, James, and John, forming the triumvirate of the leadership in the Church (we already talked about humility and absolute lack of vengeance on Andrew's side).
Also, he and his brother John (Johanan) had a nickname “sons of thunder” (see on St. John). It can be a sign of reverence toward God or a character feature (or a bug). Honestly, I don't think it should be an “either... or” choice. His passion can be a helpful tool for the advanced discipleship (see on the Letter of James) or an emotion that leads to destruction (see on Samaritan village).
Life story: He is born to the family of Zebedee and Salome. Turns out, Salome was Mary's sister, which makes James [and John] to be a cousin of Jesus. Since he is always mentioned first in a pair with his brother, it would be safe to assume that he was the oldest one.