Film

No.	Year	Title	Role	Vote Average
1	1960	Man in the Moon	Test Chamber Scientist	64
2	1967	Romeo and Juliet	Capulet	0
3	1967	To Sir, with Love	Florian	75
4	1968	Doctor Who: The Invasion	Professor Watkins	90
5	1971	10 Rillington Place	Member of Medical Board	73
6	1971	When Eight Bells Toll	Macullum	57
7	1971	The Abominable Dr. Phibes	Dr. Dunwoody	69
8	1972	Young Winston	Henry Labouchere	62
9	1972	Young Winston	Hanry Labouchere	62
10	1975	Night is the Time For Killing	Minister	60
11	1975	Doctor Who: Robot	Professor Kettlewell	68
12	1975	The Hiding Place	Underground Leader	66
13	1976	The Copter Kids	Farmer Owen	0
14	1980	'That Crazy Woman'	Judge	0
15	1982	Friend or Foe	Mr. Cooper	50
16	1982	Coming Out of the Ice	Commissar	70
17	1984	Where Is Parsifal?	Trofimov	35
18	1984	Memed My Hawk	Naked Man	50
19	1987	Little Dorrit	Daniel Doyce	65
20	1990	Dark Obsession	John the Gardner	33
21	2007	Are Friends Electric?		0

Television

No.	Year	Title	Role	Vote Average
1	1960	Sunday-Night Play	Sir Geraint Lloyd	0
2	1961	The Avengers	Meadows	77
3	1961	The Avengers	Brett	77
4	1962	The Saint	Eugene Drew	73
5	1963	Doctor Who	Professor Kettlewell	79
6	1963	Doctor Who	Professor Watkins	79
7	1964	The Wednesday Play	Basinio	45
8	1965	Front Page Story	Lincoln Ross	0
9	1965	BBC Play of the Month	Lord Capulet	50
10	1970	Play for Today	Judge	63
11	1972	Van der Valk	Jakob Mertens	58
12	1977	Nicholas Nickleby	Lillyvick	55
13	1978	All Creatures Great and Small	Professor Norton	77
14	1979	Tales of the Unexpected	Henry Bliss	67
15	1984	Eh Brian! It's A Whopper	George	80
16	1990	Nightingales	Piper	64
17	2000	Black Books	Piotr, Josef's Father	81