Joseph "Jeph" Loeb III is an Emmy and WGA nominated American film and television writer, producer and award-winning comic book writer. Loeb was a Co-Executive Producer on the NBC hit show Heroes, and formerly a producer/writer on the TV series Smallville and Lost.

A four-time Eisner Award winner and five-time Wizard Fan Awards winner (see below), Loeb's comic book career includes work on many major characters, including Spider-Man, Batman, Superman, Hulk, Captain America, Cable, Iron Man, Daredevil, Supergirl, the Avengers, and Buffy the Vampire Slayer, much of which he has produced in collaboration with artist Tim Sale, who provides the comic art seen on Heroes.