Nicolas Dwynn Coster (born December 3, 1934) is a British actor, most known for his work in daytime drama and as a character actor on nighttime television series, such as Buck Rogers in the 25th Century and Star Trek: The Next Generation.
| Title | Year | Status | Character |
|---|
| Incident at Dark River | 1989 | TV Movie | Mr. Gorman |
| Life Goes On | 1989 | TV Series | Wes Hofsteader |
| How I Got Into College | 1989 | Dr. Phillip Jellinak, Sr. |
| War of the Worlds | 1989 | TV Series | Dr. Frederick Alexander |
| Hunter | 1989 | TV Series | Gleason |
| Who's the Boss? | 1989 | TV Series | Lowell Michaels |
| Murder, She Wrote | 1989 | TV Series | Dr. Craig Zachary |
| Thirtysomething | 1989 | TV Series | Amos Borden |
| Hooperman | 1989 | TV Series | Commissioner Farrel |
| Big Business | 1988 | Hunt Shelton |
| The Facts of Life | 1982-1988 | TV Series | David Warner |
| Smart Guys | 1988 | TV Series | Mr. Hamilton |
| L.A. Law | 1987 | TV Series | Brian P. Young |
| You Are the Jury | 1986 | TV Series | Stanford McKay |
| Alfred Hitchcock Presents | 1986 | TV Series | Phil |
| Beverly Hills Madam | 1986 | TV Movie | Uncle Edgar |
| Princess Daisy | 1983 | TV Movie | Matty Firestone |
| Knight Rider | 1983 | TV Series | Ross Manley |
| T.J. Hooker | 1983 | TV Series | Kevin Mundy |
| Hardcastle and McCormick | 1983 | TV Series | Thomas Quinlan |
| Nine to Five | 1982-1983 | TV Series | Bill Spangler |
| Ryan's Four | 1983 | TV Series | Dr. Morris Whitford / Whitford |
| Teachers Only | 1983 | TV Series | Finch |
| The Mississippi | 1983 | TV Series | Davies |
| M.A.D.D.: Mothers Against Drunk Drivers | 1983 | TV Movie | Maurice Carver |
| Magnum, P.I. | 1983 | TV Series | Andrew 'Andy' MacKenzie |
| Simon & Simon | 1981-1983 | TV Series | City Attorney David Stallings / Derek Frye |
| Quincy M.E. | 1982 | TV Series | Ted Markham |
| Shannon | 1982 | TV Series | Hartunian |
| Police Squad! | 1982 | TV Series | Warner |
| Hart to Hart | 1982 | TV Series | Fred Brunis |
| Today's F.B.I. | 1982 | TV Series |
| The Day the Bubble Burst | 1982 | TV Movie |
| Reds | 1981 | Paul Trullinger |
| The Pursuit of D.B. Cooper | 1981 | Avery |
| The Misadventures of Sheriff Lobo | 1980-1981 | TV Series | Chief J.E. Carson
J.E. Carson, Chief of Detectives |
| Stir Crazy | 1980 | Warden Henry Sampson |
| The Women's Room | 1980 | TV Movie uncredited |
| Why Would I Lie? | 1980 | Walter |
| The Hunter | 1980 | Poker Player (uncredited) |
| When the Whistle Blows | 1980 | TV Series | Congressman Rogers |
| Tenspeed and Brown Shoe | 1980 | TV Series | John Dalem |
| Little Darlings | 1980 | Mr. Whitney |
| Dallas | 1978-1980 | TV Series | Lyle Sloan / Joe Morris |
| Buck Rogers in the 25th Century | 1980 | TV Series | Allerick |
| Paris | 1980 | TV Series |
| The Electric Horseman | 1979 | Fitzgerald |
| Mrs. Columbo | 1979 | TV Series | Zev Arno |
| The Solitary Man | 1979 | TV Movie | Bud Hensen |
| The Incredible Hulk | 1979 | TV Series | Col. Drake |
| The Lazarus Syndrome | 1979 | TV Series | Dr. Toddson |
| The Runaways | 1979 | TV Series | Mr. Chadway |
| Ebony, Ivory and Jade | 1979 | TV Movie | Linderman |
| The Concorde... Airport '79 | 1979 | Dr. Stone |
| Just You and Me, Kid | 1979 | Harris |
| Goldengirl | 1979 | US Olympic team doctor |
| Friendly Fire | 1979 | TV Movie | Carl |
| Bender | 1979 | TV Series |
| Long Journey Back | 1978 | TV Movie | Dr. Roberts |
| Wonder Woman | 1978 | TV Series | Silas Lockhart |
| A Fire in the Sky | 1978 | TV Movie | Governor |
| One Day at a Time | 1978 | TV Series | August La Rocca |
| The Word | 1978 | TV Mini-Series | Peter Ajemian |
| Slow Dancing in the Big City | 1978 | David Fillmore |
| The Rockford Files | 1978 | TV Series | Augie Augustine |
| The Big Fix | 1978 | Spitzler |
| Family | 1978 | TV Series | Al Krantz |
| The Amazing Spider-Man | 1978 | TV Series | Andre |
| Grandpa Goes to Washington | 1978 | TV Series | Charlie Perkins |
| Husbands, Wives & Lovers | 1978 | TV Series | Jeremy Greene |
| Baretta | 1978 | TV Series |
| Little House on the Prairie | 1978 | TV Series | Lansford Ingalls |
| The Court-Martial of George Armstrong Custer | 1977 | TV Movie | Gen. Philip Sheridan |
| Charlie's Angels | 1977 | TV Series | Professor Croydon |
| MacArthur | 1977 | Colonel Huff |
| The Blue Knight | 1976 | TV Series | Dock Katella |
| All the President's Men | 1976 | Markham (as Nicholas Coster) |
| 1776 | 1972 | South Carolina Delegate (uncredited) |
| The Sporting Club | 1971 | James Quinn |
| Somerset | 1970 | TV Series | Robert Delaney (1970-1972) (original cast) |
| All My Children | 1970 | TV Series | Steve Andrews (1988-1989) |
| One Life to Live | 1968 | TV Series | Anthony Makana (1983-1984) |
| N.Y.P.D. | 1967 | TV Series |
| The Green Hornet | 1967 | TV Series | Police Officer Gregory |
| Occasional Wife | 1966 | TV Series | Rod McHew |
| The Felony Squad | 1966 | TV Series | Kenny Leyton |
| Where's Everett | 1966 | TV Movie | Dr. Paul Jellico (as Nicholas Coster) |
| Our Private World | 1965 | TV Series | John Eldridge |
| My Blood Runs Cold | 1965 | Harry Lindsay |
| Wendy and Me | 1965 | TV Series | Vince Collins |
| No Time for Sergeants | 1965 | TV Series |
| Brenner | 1964 | TV Series | Binkie |
| Another World | 1964 | TV Series | Robert Delaney (1970-1971, 1972-1976, 1980, 1989) |
| Light Fantastic | 1964 |
| Young Dr. Malone | 1962 | TV Series | Dr. Matt Steele #3 (1962-1963) |
| Directions | 1962 | TV Series |
| The Defenders | 1961 | TV Series | Don Simmons |
| The United States Steel Hour | 1959 | TV Series | Sergeant |
| Naked City | 1959 | TV Series | Civil Service Applicant |
| As the World Turns | 1956 | TV Series | John Eldridge #1 (1966) / Eduardo Grimaldi (1993-1995) |
| City of Shadows | 1955 | Roy Fellows |
| The Eternal Sea | 1955 | Student (uncredited) |
| The Black Shield of Falworth | 1954 | Humphrey, Young Squire (uncredited) |
| The Outcast | 1954 | Asa Polsen |
| The Secret Storm | 1954 | TV Series | Prof. Paul Britton #1 (1964, 1967-1969) |
| Sea of Lost Ships | 1953 | Cadet Wilson (uncredited) |
| Your Favorite Story | 1953 | TV Series |
| The Desert Rats | 1953 | Medic (uncredited) |
| Titanic | 1953 | Seaman (uncredited) |
| Blood Type | 2017/II | completed | Bum Joe |
| Saving the King | 2017 | pre-production | Mr. Carlisle, Family Lawyer |
| A Winter Rose | 2016 | completed | Drunk |
| The Bay | 2011-2016 | TV Series | Mayor Jack Madison |
| The Young Pope | 2016 | TV Series | American Journalist |
| Chemical Cut | 2016 | Veteran |
| The Southside | 2015 | Mr. Bradshaw |
| Dancing on a Dry Salt Lake | 2013 | Dr. Woodley |
| My Synthesized Life | 2013 | TV Series | Hank Bales |
| Cold Turkey | 2013/III | Steve Utley |
| A Helping Hand | 2012 | Short | Mr. Edelman |
| Midlife | 2010 | Short | Grandpa |
| Flower Girl | 2009 | TV Movie | Gavin Green |
| Trust Me | 2009 | TV Series |
| Family of Four | 2009 | Dr. Wallace |
| Shadow on the Wall | 2008 | Short |
| Race | 2008/II | Jack Gibson |
| Loman's Tale | 2007 | Short | Loman |
| Plot 7 | 2007 | Mr. Stewart |
| Cold Case | 2006 | TV Series | Brogan Cooper |
| Crumbs | 2006 | TV Series | Charlie |
| The Lyon's Den | 2003 | TV Series | Easton Case Moderator |
| A Day Out with Gordy | 2002 | Short | Harry |
| Judging Amy | 2001 | TV Series | Mr. Oswald |
| Gideon's Crossing | 2001 | TV Series | Jed Raines |
| The Dukes of Hazzard: Hazzard in Hollywood | 2000 | TV Movie | Ezra Bushmaster |
| Blood Type | 1999 | Bum Joe |
| Miss Supreme Queen | 1999 | Short | Emcee |
| Love Happens | 1999 | Charles |
| L.A. Heat | 1999 | TV Series | Carl Shipman |
| Women: Stories of Passion | 1999 | TV Series | Arthur |
| 3rd Rock from the Sun | 1998-1999 | TV Series | Chancellor Stevens |
| Timecop | 1998 | TV Mini-Series | Captain Harriman |
| Freedom Strike | 1998 | Adm. Torrance |
| Michael Hayes | 1998 | TV Series | Calloway |
| Dr. Quinn, Medicine Woman | 1998 | TV Series | Judge Blaisdale |
| Pensacola: Wings of Gold | 1998 | TV Series | Hunter McReady |
| Gun | 1997 | TV Series | Parker Stanley Tyler |
| Tracey Takes On... | 1997 | TV Series | Senator Randall Stevens |
| Silk Stalkings | 1997 | TV Series | Liam Ryan |
| Mr. & Mrs. Smith | 1996 | TV Series | Ellis Kodack |
| Full Circle | 1996 | TV Movie | Arthur |
| Hearts Adrift | 1996 | TV Movie | Harry Winslow |
| Coach | 1996 | TV Series | Jinky |
| Natural Selection | 1994 | TV Movie |
| South of Sunset | 1993 | TV Series | Dr. Carter Bart |
| Nurses | 1993 | TV Series | Dr. Woodruff |
| Law & Order | 1991-1993 | TV Series | Reid Mullen / Morgan Stern |
| Dark Justice | 1993 | TV Series |
| Reasonable Doubts | 1993 | TV Series | Dr. Miller |
| Santa Barbara | 1984-1993 | TV Series | Lionel Lockridge |
| Beverly Hills, 90210 | 1991 | TV Series | George Azarian |
| Jake and the Fatman | 1991 | TV Series | Andrew Blane |
| Matlock | 1991 | TV Series | Chester Gaddis |
| MacGyver | 1991 | TV Series | Doc |
| Betsy's Wedding | 1990 | Harry Lovell |
| By Dawn's Early Light | 1990 | TV Movie | General Renning - 'Icarus' |
| Midnight Caller | 1990 | TV Series | Connor McCarthy |
| Star Trek: The Next Generation | 1990 | TV Series | Admiral Anthony Haftel |