Fat Albert Jackson / Brown Hornet / Bill / Host / Mudfoot / Mushmouth / Bill Cosby / Fat Albert (37 episodes, 1972-1985)
Weird Harold (31 episodes, 1972-1985)
Dumb Donald / Legal Eagle / Stinger (28 episodes, 1972-1985)
(28 episodes, 1972-1985)
Bucky / Russell (25 episodes, 1972-1985)
Rudy (4 episodes, 1972-1985)
Miss Breyfogle (1972-1978) (unknown episodes)