Knock-Knock

Knock-Knock is an anthropomorphic woodpecker and the leader of The Skatebirds. He stars as a main character in The Skatebirds live-action television series. He is performed by Bruce Hoyt, and voiced by Lennie Weinrib.

TV series

 * The Skatebirds

Specials

 * Hanna-Barbera's All-Star Comedy Ice Revue

Behind the scenes

 * Knock-Knock, as well as the other Skatebirds and Scat Cat, were originally planned for the 2021 HBO Max original series Jellystone!, but were cut due to illegal issues.