Byron Pike is Mallory Pike's 10-year-old brother and one of the Pike triplets. His identical brothers are Adam and Jordan. He is introduced in Mary Anne Saves the Day as "always hungry", and a running joke is that he is hyperaware of dinner time. In Boy-Crazy Stacey, Stacey notes that he is "more sensitive and serious" than the other triplets. He has a phobia of deep water and going into haunted houses.
Like the other two triplets, Byron enjoys comic books, sports, gross-out games and songs, making fun of his little brother Nicky, and hanging out with Jeff Schafer whenever he is in town. Unlike his brother he isn't into sports as much as Jordan and Adam.