When Master Frown starts a prank war with UniKingdom, the friends are ready to strike back. But Unikitty doesn't really understand pranks, thinking they're too mean.

Springfield’s jovial physician Dr. Julius Hibbert will no longer be voiced by Shearer moving forward after the Fox series announced in June that it will no longer have its Black characters ...

Dr. Julius Hibbert ... will be Shearer's final voice appearance as Dr. Hibbert, and a new actor will take over for the Sunday, February 28 episode of the Fox show. The actor, however, will ...

Harry Shearer has been replaced by Kevin Michael Richardson as the voice of Dr. Julius Hibbert after more than 30 years since the character's debut on the Fox animated series, PEOPLE can confirm.