Film

No.	Year	Title	Role	Vote Average
1	1963	The Power and the Glory	Soldier (uncredited)	0
2	1964	Ensign Pulver	Skouras	66
3	1966	On the Flip Side	Mr Zuckerman	0
4	1969	The Littlest Angel	Father	53
5	1969	Generation	Mr. Blatto	45
6	1970	End of the Road	School Man	46
7	1970	Tell Me That You Love Me, Junie Moon	Mario	54
8	1970	The Strawberry Statement	Grocer	61
9	1971	A New Leaf	Uncle Harry	73
10	1971	Such Good Friends	Timmy	49
11	1972	The Trouble With People	Husband (Story 1)	0
12	1972	Man of La Mancha	Sancho Panza / Cervantes' Manservant	66
13	1975	The Wild Party	Jolly Grimm	49
14	1976	The Blue Bird	Tylo the dog	53
15	1976	Murder by Death	Milo Perrier	72
16	1977	Charleston	Joe Lo Monaco	54
17	1978	Bye Bye Monkey	Andreas Flaxman	62
18	1978	The Cheap Detective	Marcel	63
19	1979	Scavenger Hunt	Henri	56
20	1980	Wholly Moses	Hyssop	47
21	1980	The Diary of Anne Frank	Hermann van Daan	55
22	1980	From Raquel with Love	Stanley	0
23	1981	Only When I Laugh	Jimmy	57
24	1982	The Curious Case Of Santa Claus	Santa Claus	0
25	1982	Night of 100 Stars	Self	67
26	1982	Debby Boone... One Step Closer	Self	0
27	1982	Lily for President?	Arthur	0
28	1983	Alice in Wonderland	King of Hearts	68
29	1984	The Muppets Take Manhattan	Mr. Skeffington	66
30	1986	There Must Be a Pony	Mervin Trellis	62
31	1987	Hunk	Dr. D	58
32	1987	The Stepford Children	Mr. Jamison	47
33	1988	The Chair	Dr. Harold Woodhouse Langer	28
34	1989	That's Adequate	Max Roebling	32

Television

No.	Year	Title	Role	Vote Average
1	1951	Hallmark Hall of Fame		86
2	1961	The Mike Douglas Show	Self	54
3	1961	The Mike Douglas Show	Self - Co-Host	54
4	1962	The Tonight Show Starring Johnny Carson	Self	75
5	1963	The Patty Duke Show		58
6	1966	ABC Stage 67	Mr. Zuckerman	62
7	1967	The Carol Burnett Show	Self - Guest / Various Characters	77
8	1968	Rowan & Martin's Laugh-In	Self	65
9	1970	The Flip Wilson Show	Self	48
10	1971	Great Performances	King of Hearts	53
11	1973	Calucci's Department		50
12	1976	The Dumplings	Joe Dumpling	50
13	1976	The Muppet Show	Self - Special Guest	80
14	1977	The Love Boat	Marion Atkins	63
15	1978	The Eddie Capra Mysteries		50
16	1979	Sweepstakes		0
17	1979	Trapper John, M.D.		65
18	1979	The French Atlantic Affair	Georges Sauvinage	70
19	1982	Matt Houston		62
20	1982	St. Elsewhere		55
21	1983	Reading Rainbow	Himself - Narrator (voice)	84
22	1984	Brothers	Mel Roth	72
23	1984	Who's the Boss?		74
24	1984	Murder, She Wrote	Horatio Baldwin	75
25	1985	The Ray Bradbury Theater	John Raleigh Braling	69
26	1985	The Twilight Zone	(segment "Act Break")	78