Dr. Jordan (2 episodes, 1998)
Gary Wallace / ... (5 episodes, 1991-2008)
Sam Henderson (1 episode, 1985)
Jack Mitchell (2 episodes, 1976)
Sergeant K-Joe Hirsh 1 episode, 1976
Mr. Fallon (1 episode, 1973)
Harry O'Neill #2 (1984-1985, 1987) (unknown episodes)
Det. Johnny Corso (49 episodes, 1967-1969)
Gregson / ... (2 episodes, 1971-1972)
Ned Simon (unknown episodes, 1992-1993)
Self - Performer 1 episode, 1970