Several people were called Billy:
- Billy, Alice's fiancé.
- Billy, a security guard at the Tarnower Financial.
- Billy the Seal Boy, former freak show artist.
- Billy, a kid at the Center for Paranormal Studies.
- Billy, victim of the Dark Heart.
- Billy Batson, a.k.a. Captain Marvel
- Billy Marrin, or Billy Marin, one of Tony Zucco's aliases.