Film

No.	Year	Title	Role	Vote Average
1	1953	The Intruder	Adjutant	72
2	1955	The Ship That Died of Shame	Bill Randall	69
3	1955	The Dam Busters	Flight Lieutenant D. J. H. Maltby, D.S.O., D.F.C.	69
4	1955	The Woman for Joe	Joe Harrop	70
5	1956	The Extra Day	Steven Marlow	66
6	1956	The Feminine Touch	Dr Jim Alcott	60
7	1956	A Hill in Korea	Lt. Butler	66
8	1957	These Dangerous Years	Padre	60
9	1957	No Time for Tears	Dr. Nigel Barnes	50
10	1958	The Moonraker	Anthony, Earl of Dawlish/The Moonraker	67
11	1958	Tread Softly Stranger	Johnny Mansell	74
12	1963	Sword of Lancelot	Sir Gawaine	45
13	1964	The Finest Hours	Lord Randolph (voice)	63
14	1965	Curse of the Fly	Martin Delambre	53
15	1965	Alice		50
16	1967	Mister Ten Per Cent	Lord Edward	42
17	1967	You Only Live Twice	NASA Engineer (uncredited)	66
18	1967	Love Life	Theodore Quill	0
19	1968	The Bone Grinder	George King	0
20	1969	Justine	British Ambassador David Mountolive	41
21	1969	Goodbye, Mr. Chips	Lord Sutterwick	67
22	1969	On Her Majesty's Secret Service	Sir Hilary Bray	66
23	1970	The Executioner	Philip Crawford	58
24	1973	Because of the Cats	Boersma	52
25	1973	A Warm December	Dr. Henry Barlow	64
26	1974	The Firefighters	Station Officer Harrison	0
27	1975	Sea Area Forties	Narrator	0
28	1975	Chameli Memsaab	Berkeley	0
29	1975	Three for All	Eddie Boyes	10
30	1976	Intimate Games	Prof. Gottlieb	63
31	1977	Three Piece Suite	Brad Hunter	0
32	1977	The Spy Who Loved Me	Captain Benson	68
33	1978	The Thirty Nine Steps	Sir Walter Bullivant	67
34	1980	North Sea Hijack	Fletcher	62
35	1980	Hopscotch	Westlake	69
36	1980	Doctor Who: Full Circle	Login	65
37	1983	The Secret Adversary	Whittington	68
38	1985	Bird Fancier	Albert Seers	0
39	1985	We'll Support You Evermore	Colonel	80
40	1986	Time After Time	Valentine Swift	0
41	1986	The Canterville Ghost	Uncle Hesketh	66
42	1987	Coast to Coast	Greaves	60
43	1988	Journey's End	Colonel	70
44	1988	For Queen & Country	Kilcoyne	54
45	2000	Inside 'On Her Majesty's Secret Service'		58
46	2000	Back to the Secret Garden	Will Weatherstaff	61
47	2002	I, Claudius: A Television Epic	Self	70
48	2007	The 50 Greatest Television Dramas	Self	0
49	2016	Chorabali	Dr. Dasgupta	58

Television

No.	Year	Title	Role	Vote Average
1	1956	Armchair Theatre	Mike	58
2	1960	Maigret		69
3	1962	Zero One		60
4	1963	Doctor Who	Login	79
5	1964	The Wednesday Play	Rev Charles Lutwidge Dodgson	45
6	1964	Curtain of Fear		0
7	1965	Gideon's Way	Bailey	68
8	1967	The Prisoner	The New Number Two	78
9	1969	The Main Chance	Major Donovan	77
10	1970	Doomwatch	John Mitchell	57
11	1970	Up Pompeii!	Jamus Bondus	76
12	1970	The Goodies		75
13	1971	The Persuaders!	Britten	76
14	1972	The Protectors	George Dixon	56
15	1973	Some Mothers Do 'Ave 'Em		76
16	1973	Bowler		50
17	1973	Bowler	Bowler	60
18	1975	Survivors	Arthur Wormley	79
19	1976	I, Claudius		78
20	1976	I, Claudius	Tiberius	78
21	1979	Hart to Hart		68
22	1979	Minder	Altman	68
23	1979	Minder	Cooper	68
24	1980	The Gentle Touch		69
25	1980	Lady Killers	Sir Terence O'Connor, Q.C.	50
26	1981	Triangle	David West	55
27	1981	The Chinese Detective		72
28	1981	Bergerac	Higgins	65
29	1982	Q.E.D.		68
30	1983	Agatha Christie's Partners in Crime	Whittington	61
31	1984	Robin of Sherwood	Sir Richard of Leaford	76
32	1984	Miss Marple	Chief Inspector Fred Davy	82
33	1985	A Woman of Substance	Bruce McGill	71
34	1985	Screen Two	Greaves	68
35	1986	Dead Head	Eldridge	53
36	1986	Room at the Bottom		50
37	1987	Miss Marple: At Bertram's Hotel	Chief Inspector Fred Davy	73
38	1987	The Ruth Rendell Mysteries	Det. Chief Insp. Reg Wexford	62
39	1987	The Charmer		30
40	1990	No Job for a Lady		57
41	1992	Heartbeat	Maurice Dodson	70
42	1995	Little Lord Fauntleroy	The Earl of Dorincourt	0
43	1995	Johnny And The Dead	Alderman	50
44	1997	Midsomer Murders	Charlie	75
45	2000	Randall & Hopkirk (Deceased)		61
46	2002	Spooks	Hugo Ross	76
47	2004	New Tricks		74