Suggestions by @thecrimsonpaw

Lana Loud

as "The Large Family." in Rock Jam

Lola Loud

as "The Large Family." in Rock Jam

Lucy Loud

as "The Large Family." in Rock Jam

Lincoln Loud

as "The Large Family." in Rock Jam

Lynn Loud

as "The Large Family." in Rock Jam

Luan Loud

as "The Large Family." in Rock Jam

Luna Loud

as "The Large Family." in Rock Jam

Leni Loud

as "The Large Family." in Rock Jam

Lori Loud

as "The Large Family." in Rock Jam

Spoiler

as "The Large Family." in Rock Jam

Jim Cummings

as Beaky Buzzard in Rock Jam

Jim Cummings

as Rocky in Rock Jam

Candi Milo

as Granny in Rock Jam

Jack Black

as Tenacious D in Rock Jam

Jeff Bennett

as Foghorn Leghorn in Rock Jam

Bohemian Rhapsody

as Soundtrack in Rock Jam

Welcome to the Jungle

as Soundtrack in Rock Jam

Fred Tatasciore

as Yosemite Sam in Rock Jam

Billy West

as Elmer Fudd in Rock Jam

Billie Joe Armstrong

as Billie Joe Armstrong in Rock Jam