Film

No.	Year	Title	Role	Vote Average
1	1956	Around the World in Eighty Days	Extra (uncredited)	66
2	1957	When We Are Married	The Rev. Clement Mercer	0
3	1958	I Can Destroy the Sun	James Cartright	0
4	1959	The Bridal Path	Inspector	55
5	1959	After the Show	Victor Liebig	0
6	1964	The Blackmailing of Mr. S	Angus Kendrick	0
7	1965	The Trial and Torture of Sir John Rampayne	Denzil Trafford	0
8	1965	Thirteen to Centaurus	Dr. Kersh	70
9	1966	The Last Invasion		0
10	1966	Doctor Who: The Power of the Daleks	Lesterson	81
11	1969	Bam! Pow! Zap!	Dr. Gossard	0
12	1971	Orkney	Spence	0
13	1971	Mary, Queen of Scots	John Knox	67
14	1973	The Monkey's Paw	Mr. Granger	0
15	1974	Captain Kronos: Vampire Hunter	Pointer	61
16	1976	Doctor Who: The Masque of Mandragora	High Priest	66
17	1978	The Four Feathers	John, the Butler	67
18	1979	Ike	Capt. Burns	62
19	1981	John Diamond	David Jones	0
20	1984	John Wycliffe: The Morning Star	Bishop Courtenay	100
21	1984	And the Wall Came Tumbling Down	Father Ambrey	70
22	1993	Soft Top Hard Shoulder	Campbell	62
23	1995	Cold Comfort Farm	Mr. McKnag	68
24	1996	On Dangerous Ground	Jack Tanner	48

Television

No.	Year	Title	Role	Vote Average
1	1951	Hallmark Hall of Fame	Macconochie	86
2	1956	Armchair Theatre	Victor Liebig	58
3	1959	No Hiding Place		37
4	1961	The Avengers	Merlin	77
5	1961	The Avengers	Ronnie Vance	77
6	1961	The Avengers	Jenkins	77
7	1962	Z-Cars		70
8	1962	The Scales of Justice	Mr. Durrant	67
9	1962	Studio Four	Eustace Willoughby Wallis	60
10	1962	Suspense		55
11	1962	Dr. Finlay's Casebook		60
12	1963	Secret Beneath the Sea		60
13	1963	Doctor Who	Lesterson	79
14	1963	Doctor Who	High Priest	79
15	1965	The Troubleshooters	Alastair McFee	50
16	1966	Mystery and Imagination		55
17	1967	Sanctuary		50
18	1968	Late Night Horror	Redvale	0
19	1968	The Expert	Dr Mitchell	100
20	1969	Sinister Street	Dickie Prescott	0
21	1969	Counterstrike		50
22	1970	The Six Wives of Henry VIII	Robert Barnes	81
23	1970	Doomwatch	Barker	60
24	1972	The Adventurer	Le commissaire-priseur	55
25	1972	Crown Court		54
26	1973	Orson Welles' Great Mysteries	Mr. Granger	67
27	1974	Playhouse	Mr. Argent	70
28	1974	Father Brown	Doctor Wynn	66
29	1975	Lord Peter Wimsey: Five Red Herrings	Sir Maxwell Jamieson	0
30	1975	Rumpole of the Bailey		71
31	1977	Nicholas Nickleby	Newman Noggs	55
32	1977	The Professionals	David Merlin	74
33	1977	The Professionals	Cusak	74
34	1978	Blake's 7		72
35	1978	Blake's 7	Ven Glynd	72
36	1979	Kidnapped	Scougal	66
37	1981	Winston Churchill: The Wilderness Years	Ramsay Macdonald	50
38	1981	Winston Churchill: The Wilderness Years	Ramsay Macdonald (uncredited)	50
39	1983	Shackleton	Sir John Scott-Keltie	60
40	1983	Taggart	Robert Menzies	63
41	1984	Hammer House of Mystery and Suspense	Father Ambrey/Packard	64
42	1993	Century Falls		60
43	1996	The Crow Road	Blawke	70