His best friend is Buster Bunny who as being a duck, WB-ancestrally the rival of the rabbit, inadvertently irritates him at times, and is also friends with Babs Bunny (by association with Buster) and Hamton Pig (an easy target for one of his self-centeredness). His love is Shirley McLoon. His greatest rival is probably Buster himself, who dismisses his desperate attempts for stardom.
He is apparently quite acquainted with the Warners by Season 3.
He appeared first as Baby Plucky in the Episode 22 segment Guardin' the Garden, where he hit the snake with a club.
Later, he appeared in Episode 47: Video Review/When Mice Ruled the Earth on a video, as his normal self.