Film

No.	Year	Title	Role	Vote Average
1	1992	The World of Peter Rabbit and Friends	Benjamin Bunny	85
2	1994	The Madness of King George	Fortnum	68
3	1995	In the Bleak Midwinter	Young actor	71
4	1996	The Willows in Winter	Nephew Vole	70
5	1998	St. Ives	Le Bon	57
6	1998	The Revengers' Comedies	Percy Cutting	58
7	1998	Love Is the Devil: Study for a Portrait of Francis Bacon	Daniel Farson	60
8	1999	The Passion	Martin	0
9	2000	Last Resort	Council Official	63
10	2001	Gosford Park	Barnes	68
11	2002	The Making of 'Gosford Park'	Self (uncredited)	50
12	2002	Dirty Pretty Things	The Doctor	69
13	2003	To Kill a King	Sergeant Joyce	57
14	2003	Bright Young Things	Customs Officer	63
15	2003	Promoted to Glory	Arnold	0
16	2004	Vera Drake	Frank	72
17	2006	The History Boys	Wilkes	67
18	2006	Notes on a Scandal	Martin	71
19	2007	The Trial of Tony Blair	Simon	61
20	2007	Maxwell	Bob Cole	60
21	2007	The History of Mr Polly		60
22	2007	Elizabeth: The Golden Age	Calley	67
23	2008	Poppy Shakespeare	Middle Class Michael	68
24	2009	Into the Storm	Sawyers	64
25	2010	Magpie	Ray	0
26	2010	National Theatre Live: The Habit of Art	Donald / Humphrey Carpenter	80
27	2010	The King's Speech	BBC Radio Announcer	77
28	2012	Mrs Biggs	Bernard Powell	79
29	2012	Doctor Who: The Making of The Gunslinger	Kahler Jek	100
30	2012	Get Lucky	St John Ponsoby Hunt	0
31	2012	Les Misérables	Toothman	73
32	2013	Delicious		54
33	2014	National Theatre Live: King Lear	The Fool	71
34	2014	The Incredible Adventures of Professor Branestawm	The Vicar	45
35	2015	A Little Chaos	Daniel Le Vielle	63
36	2015	Professor Branestawm Returns	The Vicar	70
37	2016	The Secret Life of Sue Townsend (Aged 68 3/4)	Self	70
38	2018	On Chesil Beach	Lionel Mayhew	62
39	2018	Patrick	Mr. Peters	67
40	2018	Christopher Robin	Hal Gallsworthy	73
41	2018	National Theatre Live: The Madness of George III	Dr Willis	63
42	2019	The Last Vermeer	Dirk Hannema	66
43	2019	Gavin & Stacey: A Special Christmas	Pete Sutcliffe	90
44	2019	1917	Major Hepburn	80
45	2020	Miranda: My Such Fun Celebration	Self	63
46	2020	Artemis Fowl	The Goblin Chief	55
47	2020	Christmas at Hampton Court	Self - Narrator (voice)	0
48	2024	Inside No. 9: The Party's Over	Self	100
49	2024	Gavin & Stacey: The Making of the Finale	Self	0
50	2025	Gavin & Stacey: A Fond Farewell	Self	80

Television

No.	Year	Title	Role	Vote Average
1	1971	Upstairs, Downstairs		76
2	1992	Heartbeat	Martin Padmore	71
3	1992	The World of Peter Rabbit and Friends	Mr. Benjamin Bunny (voice)	61
4	1995	The Governor	Walter Brinkley	0
5	1995	Coogan's Run		64
6	1997	Midsomer Murders	Peter Fogden	75
7	1997	Midsomer Murders	Eddie Carfax	75
8	1997	Midsomer Murders	Tony Pitt	75
9	1997	A Dance to the Music of Time	JG Quiggin	53
10	1999	Let Them Eat Cake		68
11	2004	New Tricks		74
12	2005	Doctor Who	Kahler-Jex	76
13	2006	Saxondale	Chairman	74
14	2007	Kingdom	Jeff	71
15	2007	Gavin & Stacey	Pete Sutcliffe	75
16	2007	Cranford	Mr. Johnson	81
17	2009	Psychoville		68
18	2009	Miranda	Dreamboat Charlie	76
19	2010	Upstairs Downstairs	Mr. Warwick Pritchard	74
20	2011	The Adventures of Abney & Teal	Abney (voice)	60
21	2011	Death in Paradise	Leo Pascal	74
22	2012	Mrs Biggs	Bernard Powell	80
23	2012	The Paradise	Fenton	73
24	2012	Restless	Morris Devereux	71
25	2013	Father Brown	Clive Trueman	75
26	2013	Plebs	Claudius	72
27	2013	Up the Women	Frank	63
28	2014	Inside No. 9	Larry	80
29	2014	Edge of Heaven	Bald Gary	0
30	2014	The Great War: The People's Story	Winston Churchill	61
31	2015	Blunt Talk	Harry Chandler	67
32	2016	Crashing	Colin	71
33	2017	Urban Myths	Chief Inspector Danders	74
34	2017	Little Women	Mr Davis	71
35	2018	Killing Eve	Raymond	80
36	2018	A Very English Scandal	George Carman QC	71
37	2019	The Accident	Philip Walters	62
38	2019	I'm a LA... Get Me Out of Here!	Self - Contestant	100
39	2020	Between the Covers	Self	55
40	2020	Hampton Court: Behind Closed Doors	Self - Narrator (voice)	0
41	2021	Bloods	Gary	64
42	2021	Murder, They Hope	Jacob	74
43	2022	The Chelsea Detective	DI Max Arnold	62
44	2024	Mr. Bigstuff	Ian	68