Ryan Sean O'Donohue (born April 26, 1984) is an American actor best known for his role as Zeke Byrd in the 1994 television series The Byrds of Paradise.
O'Donohue was born Ryan Sean O'Donohue on April 26, 1984 in Pomona, California, to Anita Lynne (née Rultenberg) and Sean Patrick O'Donohue. He was raised in San Dimas, California. He has a younger sister named Windy (b. 1987).
O'Donohue is known for his role as Zeke Byrd on the 1994 ABC drama The Byrds of Paradise. He then starred as Peter Hansen in the 1994 CBS sitcom The Boys Are Back alongside Hal Linden and Suzanne Pleshette. As a voice actor, O'Donohue voiced Matt McGinnis in Batman Beyond, Demyx in the Kingdom Hearts video game franchise, Randall Weems in Recess, and young Kovu in '.
O'Donohue married Veronica Faye Dean on June 15, 2004. Together they have one child, a daughter, named Hazel Ryan O'Donohue, who was born in December 2004. Through their daughter, O'Donohue and his wife have two grandchilden, a grandson (b. August 9, 2023) and a granddaughter (b. August 25, 2025).
O'Donohue was nominated for the Best Young Performer in a Voice-Over award at the 19th Youth in Film Awards, for his performance in the first season of Recess.