Samurai Jack is the protagonist of the cartoon series, Samurai Jack, the son of the Japanese Emperor who ruled the area where Aku originally appeared on Earth, and is banished to the future by Aku during their first battle, where he is left in every episode to search for a way home. He was born on the day that his father defeated Aku and

he seems to be the only mortal (aside from his father) to be a match to Aku.

Jack is a character in several fan fictions, having in different backgrounds of the character and so resulting in vastly different characters. Jack might refer to: