On screen
Cast
7 credited performers
Bill Cosby
Fat Albert Robertson / Bill / Mushmouth / Mudfoot Brown (voice)
Artwork unavailable
Jan Crawford
Russell / Bucky (voice)
Artwork unavailable
Gerald Edwards
Weird Harold (voice)
Artwork unavailable
Eric Suter
Rudy (voice)
Erika Scheimer
Character not listed
Artwork unavailable
Jay Scheimer
Character not listed
Lou Scheimer
Character not listed