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| Title | Year | Status | Character |
|---|
| Days of Our Lives | 1997-2002 | TV Series | Hotel Manager / Jeweller / Mr. Simkins / ... |
| The Random Years | 2002 | TV Series | Sir Milton Pith |
| Crossing Jordan | 2002 | TV Series | George |
| Blasphemy the Movie | 2001 | Zeus |
| State of Grace | 2001 | TV Series | Donnie Thursday |
| Love & Money | 2000 | TV Series | Arthur |
| Megalomania | 2000 | Short | Julius C. Saurian |
| Jack Frost 2: Revenge of the Mutant Killer Snowman | 2000 | Video | Psychiatrist (as Ian Ambercrombie) |
| Star Trek: Voyager | 1999-2000 | TV Series | Milo / Abbot |
| Nox | 2000 | Video Game | Horvath / Loproc (voice) |
| Endgame | 1999 | Short | The Narrator (voice) |
| It's Like, You Know... | 1999 | TV Series | Narrator |
| Grown Ups | 1999 | TV Series | Philip Dmytryk |
| Good vs Evil | 1999 | TV Series | Jasper Ray |
| Wild Wild West | 1999 | British Dignitary |
| The Expert | 1999 | TV Series | Grandfather |
| Buffy the Vampire Slayer | 1998 | TV Series | Old Man |
| Seinfeld | 1994-1998 | TV Series | Mr. Pitt
Justin Pitt |
| Beyond Belief: Fact or Fiction | 1998 | TV Series | Emil Root |
| NewsRadio | 1998 | TV Series | Cadbury |
| Johnny Mysto: Boy Wizard | 1997 | Video | Merlin |
| Mousehunt | 1997 | Auctioneer |
| The Lost World: Jurassic Park | 1997 | Butler |
| Touched by an Angel | 1997 | TV Series | George Taylor |
| Over the Top | 1997 | TV Series | Nigel |
| Party Girl | 1996 | TV Series | Mr. Davenport |
| A Face to Die For | 1996 | TV Movie | Mr. Sturetsky |
| Rattled | 1996 | TV Movie | Dr. Remsen |
| Sisters | 1995 | TV Series | Miles Pickering |
| From the Mixed-Up Files of Mrs. Basil E. Frankweiler | 1995 | TV Movie | Parks (uncredited) |
| Babylon 5 | 1995 | TV Series | Correlilmurzon |
| Blossom | 1995 | TV Series | Mr. Winters |
| Cybill | 1995 | TV Series | Alan Ford |
| At the Movies II | 1994 | Short | Maitre'D |
| Northern Exposure | 1994 | TV Series | Anastasia's Aide |
| Test Tube Teens from the Year 2000 | 1994 | Video | Prof. Dorn |
| Clean Slate | 1994 | Leader |
| Murphy Brown | 1994 | TV Series | Professor Willendorf |
| Cafe Americain | 1993 | TV Series | Uncle Claude |
| The Nanny | 1993 | TV Series | Butler Inspector #1 |
| Addams Family Values | 1993 | Driver |
| Grief | 1993 | Stanley |
| Coach | 1992 | TV Series | Jackie |
| Army of Darkness | 1992 | Wiseman |
| The Public Eye | 1992 | Mr. Brown |
| Rolling Thunder | 1991 |
| Puppet Master III: Toulon's Revenge | 1991 | Video | Dr. Hess |
| Zandalee | 1991 | Louis Medina |
| The Flash | 1990 | TV Series | Skip |
| Twin Peaks | 1990 | TV Series | Tom Brockman |
| Repossessed | 1990 | Iced Tea Waiter (uncredited) |
| Tales from the Crypt | 1990 | TV Series | Fulton |
| Generations | 1990 | TV Series | Mr. Fleischer |
| 21 Jump Street | 1989 | TV Series | Lemieux |
| ALF | 1989 | TV Series | British Announcer |
| Dark Holiday | 1989 | TV Movie | Captain |
| Warlock | 1989 | Magistrate #1 |
| Empty Nest | 1989 | TV Series | Captain Burke |
| The Judge | 1988 | TV Series | Phillips |
| War and Remembrance | 1988 | TV Mini-Series | Vice Adm. Rodney |
| The New Leave It to Beaver | 1988 | TV Series | The Psychiatrist |
| Catacombs | 1988 | Brother Orsini |
| Dynasty | 1984-1988 | TV Series | Tom Bradfield / Tom Bowman / Judge |
| Hunter | 1988 | TV Series | George |
| Frog | 1987 | TV Movie | Dr. Fritsky |
| Faerie Tale Theatre | 1987 | TV Series | Royal Cobbler |
| Murder, She Wrote | 1987 | TV Series | Dr. Blandings |
| Falcon Crest | 1986-1987 | TV Series | George Latham / Ross Beaton |
| Nine to Five | 1987 | TV Series | Lord Mumford |
| The New Mike Hammer | 1987 | TV Series | Roger Jennings |
| It's Garry Shandling's Show. | 1987 | TV Series | Fate |
| Moonlighting | 1987 | TV Series | Ludwig |
| Flicks | 1987 | Inspector (segment 'Whodunit') |
| L.A. Law | 1986 | TV Series | Gunther Hall |
| Firewalker | 1986 | Boggs |
| Hotel | 1986 | TV Series | Michel Rommand |
| Stingray | 1986 | TV Series | Hair Salon Owner |
| Last Resort | 1986 | Maitre d' |
| The Colbys | 1986 | TV Series | Minister |
| Alfred Hitchcock Presents | 1986 | TV Series | Doctor |
| Foley Square | 1986 | TV Series | Maitre' D |
| Hostage Flight | 1985 | TV Movie | Scotland Yard Supervisor |
| George Burns Comedy Week | 1985 | TV Series | Dr. Hirsch |
| Silver Spoons | 1985 | TV Series | Guy Du Maurier |
| Royal Match | 1985 | TV Movie | Duke Alford |
| Kicks | 1985 | TV Movie | Barnes |
| ABC Afterschool Specials | 1985 | TV Series | Mr. Hanna |
| Santa Barbara | 1984-1985 | TV Series | Phillip / Philip / Butler |
| Who's the Boss? | 1985 | TV Series | Leo |
| Otherworld | 1985 | TV Mini-Series | Mr. Miro |
| Airwolf | 1985 | TV Series | Lord Killebrew |
| The Ice Pirates | 1984 | Hymie |
| Three's Company | 1984 | TV Series | The Lawyer |
| Emerald Point N.A.S. | 1984 | TV Series | Vince |
| Divorce Court | 1984 | TV Series |
| Journey's End | 1983 | TV Movie |
| Fantasy Island | 1977-1983 | TV Series | McShane / Inspector Lestrade / Bartender |
| Tucker's Witch | 1983 | TV Series | Doorman |
| Happy Days | 1983 | TV Series | Oscar |
| The Devlin Connection | 1982 | TV Series | Auctioneer |
| Voyagers! | 1982 | TV Series | Bitiatus |
| Marian Rose White | 1982 | TV Movie | Lord Bates |
| Getting Even | 1981 | Mr. Kenwood |
| Knots Landing | 1981 | TV Series | Caterer |
| Quincy M.E. | 1981 | TV Series | Dr. Rutherford |
| Vega$ | 1980 | TV Series | Cashmir |
| Blood Beach | 1980 | Man in Mayor's Office |
| The Happy Hooker Goes Hollywood | 1980 | Denis |
| The Life and Times of Eddie Roberts | 1980 | TV Series | Partridge |
| S.O.S. Titanic | 1979 | TV Movie | Deck steward (uncredited) |
| The Prisoner of Zenda | 1979 | Johann |
| Mrs. Columbo | 1979 | TV Series | Carmichael |
| Backstairs at the White House | 1979 | TV Mini-Series | British Valet |
| The Dancing Princesses | 1978/I | TV Movie | Royal Cobbler |
| Battlestar Galactica | 1978 | TV Series | Forger 7 |
| The Hardy Boys/Nancy Drew Mysteries | 1978 | TV Series | Sgt. Lander |
| Little Mo | 1978 | TV Movie | Dr. Noyes (uncredited) |
| The Bastard | 1978 | TV Movie | Deserter |
| Keefer | 1978 | TV Movie | Rudy |
| Sextette | 1978 | Rex Ambrose |
| The Six Million Dollar Man | 1977 | TV Series | 2nd Man in Van / Shoemacher |
| The San Pedro Bums | 1977 | TV Movie | Crazed Shopper (uncredited) |
| Eleanor and Franklin: The White House Years | 1977 | TV Movie | Whiting (uncredited) |
| The Quest | 1976 | TV Series | Englishman |
| High Risk | 1976 | TV Movie | Steward |
| Panache | 1976 | TV Movie | Cabbage Vendor (uncredited) |
| Joe Forrester | 1976 | TV Series | Newsman |
| The Island at the Top of the World | 1974 | Train Conductor (uncredited) |
| Young Frankenstein | 1974 | Second Villager (uncredited) |
| Cannon | 1974 | TV Series | Bartender |
| The Questor Tapes | 1974 | TV Movie | Charlie (uncredited) |
| Barnaby Jones | 1973 | TV Series | Western Bar Patron |
| Wicked, Wicked | 1973 | Eddie, Room Service Waiter (uncredited) |
| Midnight Ride of Paul Revere | 1973 | TV Movie |
| Columbo | 1972 | TV Series | Sidney (Party Guest) |
| Search | 1972 | TV Series | Florist |
| The Woman I Love | 1972 | TV Movie | English News Reporter (uncredited) |
| The Hound of the Baskervilles | 1972 | TV Movie | Train Conductor (uncredited) |
| O'Hara, U.S. Treasury | 1971 | TV Series | Mike |
| The Molly Maguires | 1970 | Stock Actor (uncredited) |
| Get Smart | 1970 | TV Series | Sergeant Poole |
| Sole Survivor | 1970 | TV Movie | British Co-Pilot |
| They Shoot Horses, Don't They? | 1969 | Male Dancer #74 (uncredited) |
| Dragnet 1967 | 1969 | TV Series | Newsman |
| Star! | 1968 | Man in Brixton Music Hall (uncredited) |
| Von Ryan's Express | 1965 | English POW (uncredited) |
| General Hospital | 1963 | TV Series | Clive Durban (1993) |
| Star Wars: The Clone Wars | 2008-2014 | TV Series | Chancellor Palpatine
Darth Sidious
Pirate #2 |
| Green Lantern: The Animated Series | 2011-2013 | TV Series | Ganthet |
| Wizards of Waverly Place | 2008-2012 | TV Series | Professor Crumbs
Headmaster Crumbs |
| Happily Divorced | 2011 | TV Series | Victor |
| Childrens Hospital | 2011 | TV Series | Butler |
| Rango | 2011 | Ambrose (voice) |
| Star Wars: The Clone Wars - Republic Heroes | 2009 | Video Game | Chancellor Palpatine
Darth Sidious (voice) |
| Star Wars: The Clone Wars: Lightsaber Duels | 2008 | Video Game | Darth Sidious (voice) |
| Based on a True Story | 2008 | Short | Old Man |
| Star Wars: The Clone Wars | 2008 | Chancellor Palpatine
Darth Sidious (voice) |
| How I Met Your Mother | 2008 | TV Series | Ben Franklin |
| The Last Days of Limbo | 2008 | Short | Archbishop Minnerath |
| Hard Four | 2007 | Jack Ermine |
| Moonlight | 2007 | TV Series | Richard Whitley |
| Trust Me | 2007 | Teitelbaum |
| Desperate Housewives | 2006 | TV Series | Rupert |
| Sacred Rings | 2006 | Video Game |
| Inland Empire | 2006 | Henry the Butler |
| Garfield: A Tail of Two Kitties | 2006 | Smithee |
| The Batman | 2006 | TV Series | Ewan |
| Model Family | 2006 | TV Short | Geneticist |
| Agatha Christie: And Then There Were None | 2005 | Video Game | Thomas Rogers
General Mackenzie (voice) |
| Hidden Howie: The Private Life of a Public Nuisance | 2005 | TV Series | Dr. Ambrose |
| The Grim Adventures of Billy & Mandy | 2005 | TV Series | F |
| Summerland | 2005 | TV Series | Thomas Lindfield |
| The L.A. Riot Spectacular | 2005 | Auctioneer |
| Area 51 | 2005 | Video Game | Dr. Cray (voice) |
| Marilyn Hotchkiss' Ballroom Dancing & Charm School | 2005 | Evrin Sezgin |
| Charmed | 2004 | TV Series | Aramis |
| Chromiumblue.com | 2003 | Sir George |
| Nip/Tuck | 2003 | TV Series | Cyril Parks |
| Birds of Prey | 2002-2003 | TV Series | Alfred Pennyworth |
| 007: Nightfire | 2002 | Video Game | Alexander Mayhew (voice) |
| The District | 2002 | TV Series | Leon |
| ChromiumBlue.com | 2002 | TV Series | Sir George |