After his father had passed away, Darrell Greig and his uncle were the only heirs of the Greig fortune (there is no knowledge of what happened to his mother). His uncle (with a compatriot) tried to kill him, to get the fortune. Luckily for Darrell, 13 saved him just in time.
Darrell asked to become Thirteens partner in fighting crime. 13 thought: Why not? Together they fought against criminals, for fife issues, before both of them disappeared in to obscurity.
Bernie Klein and Dick Wood.
- During his first appearance, he was 13 years old.