2011

as Himself

2002

as Self

1999

as Brain (voice)

1997

(2 episodes) as Principal Hickey (voice) (23 episodes) as Principal Hickey

1995		Gadget Boy & Heather (26 episodes) as Gadget Boy (voice)
1995		Gadget Boy's Adventures in History (52 episodes)
1995		Get Smart (7 episodes) as Maxwell Smart

1992

as Inspector Gadget (voice)

1989

as Maxwell Smart

1987		Beverly Hills Teens (65 episodes)
1987		Back to the Beach as Harbor Master

1985		Check It Out! (66 episodes) as Howard Bannister
1985		Hollywood's Funniest All-Star Bloopers as Self (archive footage)

1983

(86 episodes) as Inspector Gadget (voice)

1982		Jimmy the Kid as Harry Walker
1982		Oops, Those Hollywood Bloopers! as Self (archive footage)

1980		Murder Can Hurt You! as Narrator (voice)
1980		The Nude Bomb as Maxwell Smart

1979		Check It Out (0 episodes)
1979		Billy (1 episode)

1977

(1 episode) as Sidney Williams (1 episode) as William Robinson (1 episode) as Lenny Camen

1976

as Self

1975

1974

(3 episodes) as Self

1973

as The Old Cowhand / Host

1972		Don Rickles: Alive And Kicking as Self
1972		Wait Till Your Father Gets Home (1 episode)
1972		The New Scooby-Doo Movies (1 episode) as Don Adams (voice)

1971

(20 episodes) as Det. Lennie Crooke

1969

(1 episode)

1967		The Carol Burnett Show (1 episode) as Self - Guest
1967		Rowan & Martin's Laugh-In (1 episode) as Self
1967		Get Smart: A Man Called Smart as Maxwell Smart

1965

(138 episodes) as Maxwell Smart

1963		Tennessee Tuxedo (70 episodes)
1963		The Bill Dana Show (42 episodes)

1962		The Tonight Show Starring Johnny Carson (35 episodes) as Self
1962		The Merv Griffin Show (1 episode) as Self

1961

(4 episodes) as Self - Co-Host (2 episodes) as Self

1957		The Lux Show (2 episodes) as Self
1957		Tonight Starring Jack Paar (7 episodes) as Self

1956

(8 episodes) as Self - Comedian

1950

(3 episodes) as Self

1948

(1 episode) as Self - Comedian / Magician (2 episodes) as Self - Comedian