Bob Zablonsky (1 episode, 2012)
Brainy Smurf / ... (4 episodes, 2005-2011)
Sam Giddell (1 episode, 1993)
Ozzie (15 episodes, 1984-1987)
Brainy Smurf / ... 248 episodes, 1981-1989
Otterholm (2 episodes, 1981-1982)
Doctor Bosca / ... 2 episodes, 1978-1979
Customer / ... (3 episodes, 1979-1985)
Lawrence (1 episode, 1974)
Bartender (в титрах отсутствует)
Press photographer (1 episode, 1973)
Clarence Darrow (unknown episodes, 1991)