
| Title | Year | Status | Character |
|---|
| Looney Tunes: Back in Action | 2003 | | Dr. Bennell |
| The Legend of Razorback | 2002 | Short | Zondervan |
| The District | 2000 | TV Series | Congressman Reese |
| Addams Family Reunion | 1998 | TV Movie | Grandpa Addams |
| The Weird Al Show | 1997 | TV Series | Mayor |
| Elvis Meets Nixon | 1997 | TV Movie | Deep Throat (uncredited) |
| The Second Civil War | 1997 | TV Movie | Chief of Staff |
| Early Edition | 1997 | TV Series | Judge Jake Wellborn |
| Boston Common | 1996 | TV Series | Professor Weaver |
| The Pandora Directive | 1996 | Video Game | Gordon Fitzpatrick |
| Mommy | 1995 | | Fire Department Rescuer |
| Steal Big Steal Little | 1995 | | Reed Tyler |
| The Sister-in-Law | 1995 | TV Movie | George Richards |
| Liz: The Elizabeth Taylor Story | 1995 | TV Movie | Sol Siegel |
| Just Cause | 1995 | | Phil Prentiss |
| Judicial Consent | 1994 | | Judge Pollan |
| Dream On | 1994 | TV Series | Wade |
| Roadracers | 1994 | TV Movie | Miles |
| Rebel Highway | 1994 | TV Series | Miles |
| Greedy | 1994 | | Bartlett |
| Love & War | 1993 | TV Series | Fletch |
| Matinee | 1993 | | Gen. Ankrum (uncredited) |
| The Distinguished Gentleman | 1992 | | Terry Corrigan |
| The Legend of Prince Valiant | 1992 | TV Series | |
| Tales from the Crypt | 1992 | TV Series | Jack |
| Batman: The Animated Series | 1992 | TV Series | Dr. Long |
| Human Target | 1992 | TV Series | Harry Chance |
| Duplicates | 1992 | TV Movie | Dr. Congemi |
| Murder, She Wrote | 1985-1992 | TV Series | Walter Bowman / Randolph Sterling / Milton Porter |
| Charlie Hoover | 1991 | TV Series | Mr. Culbertson |
| Ghoulies Go to College | 1991 | Video | Professor Ragnar |
| Final Approach | 1991 | | Gen. Geller |
| Dead on the Money | 1991 | TV Movie | Waverly Blake |
| Father Dowling Mysteries | 1991 | TV Series | Laidlaw / Stackpole |
| Eve of Destruction | 1991 | | William Simmons (uncredited) |
| The Rose and the Jackal | 1990 | TV Movie | Senator Henry Wilson |
| The Sleeping Car | 1990 | | Vincent Tuttle |
| Love or Money | 1990 | | William Reed |
| Matlock | 1989 | TV Series | Jonathan Horton |
| UHF | 1989 | | R.J. Fletcher |
| Fast Food | 1989 | | Judge Reinholte |
| Dark Tower | 1989 | | Sergie |
| China Beach | 1989 | TV Series | Congressman Holmes |
| Passion and Paradise | 1989 | TV Movie | Harold Christie |
| Simon & Simon | 1988 | TV Series | Atty Doug McKenna |
| Channel 99 | 1988 | TV Movie | The General |
| In the Heat of the Night | 1988 | TV Series | Harold LaPierre |
| Once Upon a Texas Train | 1988 | TV Movie | The Govenor |
| Head of the Class | 1987 | TV Series | Lawrence P. Whitley |
| The Long Journey Home | 1987 | TV Movie | Harland Everett |
| Poor Little Rich Girl: The Barbara Hutton Story | 1987 | TV Movie | Franklyn Hutton |
| Hostage | 1987 | | Col. Tim Shaw |
| Innerspace | 1987 | | Victor Eugene Scrimshaw |
| The Colbys | 1986-1987 | TV Series | Lucas Carter |
| Square One Television | 1987 | TV Series | Norman Mailbag |
| Mathnet | 1987 | TV Series | Norman Mailbag |
| LBJ: The Early Years | 1987 | TV Movie | Joseph Kennedy |
| Home | 1987 | TV Movie | Edison |
| Fame | 1986 | TV Series | Mr. William Quigley |
| The Golden Girls | 1986 | TV Series | Richard |
| The A-Team | 1986 | TV Series | Bob McKeever |
| A Masterpiece of Murder | 1986 | TV Movie | Jonathan Hire |
| Raw Terror | 1986 | | |
| The Midnight Hour | 1985 | TV Movie | Judge Crandall |
| Hotel | 1985 | TV Series | Calvin Polk |
| Scarecrow and Mrs. King | 1985 | TV Series | William O'Keefe |
| Deadly Intentions | 1985 | TV Movie | Reichman |
| Finder of Lost Loves | 1985 | TV Series | Ben Harper |
| The Ratings Game | 1984 | TV Movie | Wes Vandergelder |
| Dynasty | 1984 | TV Series | Billy Waite |
| Invitation to Hell | 1984 | TV Movie | Mr. Thompson |
| Fantasy Island | 1984 | TV Series | Daniel Koster |
| The Love Boat | 1983 | TV Series | Barry Cooper |
| Making of a Male Model | 1983 | TV Movie | Ward Hawley |
| Twilight Zone: The Movie | 1983 | | Uncle Walt (Segment #3) |
| My Tutor | 1983 | | Mr. Chrystal |
| Amanda's | 1983 | TV Series | Zack Cartwright |
| Bay City Blues | 1983 | TV Series | George Hayward Hayward |
| Rosie: The Rosemary Clooney Story | 1982 | TV Movie | Dr. Jones |
| Flamingo Road | 1980-1982 | TV Series | Claude Weldon |
| The Howling | 1981 | | Fred Francis |
| Portrait of an Escort | 1980 | TV Movie | Dr. Ken Paige |
| Those Lips, Those Eyes | 1980 | | Mickey Bellinger |
| Hero at Large | 1980 | | Calvin Donnelly |
| Invasion of the Body Snatchers | 1978 | | Running man |
| Piranha | 1978 | | Dr. Robert Hoak |
| The Oregon Trail | 1977 | TV Series | Levering |
| Mary Jane Harper Cried Last Night | 1977 | TV Movie | Tom Atherton |
| Exo-Man | 1977 | TV Movie | Dist. Atty. Kamenski |
| Hawaii Five-O | 1968-1976 | TV Series | Hunter R. Hickey / Victor Reese |
| Buffalo Bill and the Indians, or Sitting Bull's History Lesson | 1976 | | The Publicist (Maj. John Burke) |
| Order to Assassinate | 1975 | | Ed McLean (as Kelvin McCarthy) |
| The Manhunter | 1975 | TV Series | |
| Great Performances | 1974-1975 | TV Series | Trigorin Hart |
| Cannon | 1974 | TV Series | General Nielson |
| Alien Thunder | 1974 | | Sgt. Malcolm Grant |
| Columbo | 1973 | TV Series | Dr. Frank Simmons |
| Banacek | 1972 | TV Series | Allen Markham |
| A Great American Tragedy | 1972 | TV Movie | Mark Reynolds |
| Kansas City Bomber | 1972 | | Burt Henry |
| Richard | 1972 | | Washington Doctor |
| Between Time and Timbuktu | 1972 | TV Movie | Bokonon |
| The Last of the Powerseekers | 1971 | TV Movie | Philip Hastings |
| Mission: Impossible | 1971 | TV Series | Whitmore Channing |
| Bearcats! | 1971 | TV Series | Carter Gladstone |
| The Survivors | 1969 | TV Series | Philip Hastings |
| Medical Center | 1969 | TV Series | Clifford Coswell |
| The F.B.I. | 1966-1969 | TV Series | James Evans / Paul Dorn / Lamont |
| The High Chaparral | 1968 | TV Series | James Forrest |
| Ace High | 1968 | | Drake (as Kevin Mc Carthy) |
| The Name of the Game | 1968 | TV Series | Carter Haines |
| If He Hollers, Let Him Go! | 1968 | | Leslie Whitlock |
| The Wild Wild West | 1968 | TV Series | Major General Walter Kroll |
| The Hell with Heroes | 1968 | | Col. Wilson |
| Judd for the Defense | 1967-1968 | TV Series | Joe Maddox / Paul Christopher |
| The Felony Squad | 1966-1968 | TV Series | Virgil Haney / Charles Roland Flagg |
| Garrison's Gorillas | 1967 | TV Series | Major Richards |
| The Guns of Will Sonnett | 1967 | TV Series | Sheriff Tom Mills |
| The Invaders | 1967 | TV Series | Paul Cook |
| Ghostbreakers | 1967 | TV Movie | Cameron Witherspoon |
| The Road West | 1967 | TV Series | Rando |
| Hotel | 1967 | | Curtis O'Keefe |
| The Three Sisters | 1966 | | Vershinin |
| Bob Hope Presents the Chrysler Theatre | 1966 | TV Series | Sean |
| 12 O'Clock High | 1966 | TV Series | Major Baladin |
| A Big Hand for the Little Lady | 1966 | | Otto Habershaw |
| The Legend of Jesse James | 1966 | TV Series | Sheriff Dockery |
| The Man from U.N.C.L.E. | 1966 | TV Series | Arthur Caresse |
| Burke's Law | 1964-1966 | TV Series | Bill Adams / Chukker Curtis / Elliott Dunning |
| The Fugitive | 1966 | TV Series | Herb Malone |
| Honey West | 1965 | TV Series | Jerry Ivar |
| Mirage | 1965 | | Sylvester Josephson |
| Dr. Kildare | 1963-1965 | TV Series | Dr. Omar Larson / Dr. Harvey Gruboldt |
| The Doctors and the Nurses | 1964 | TV Series | Peter Malone |
| Mr. Novak | 1964 | TV Series | Mr. Williams |
| The Best Man | 1964 | | Dick Jensen |
| The Alfred Hitchcock Hour | 1964 | TV Series | Paul Blackshear |
| The Prize | 1963 | | Dr. John Garrett |
| An Affair of the Skin | 1963 | | Allen McCleod |
| The Eleventh Hour | 1963 | TV Series | Jim Marnell |
| Breaking Point | 1963 | TV Series | David Henry |
| A Gathering of Eagles | 1963 | | Gen. 'Happy Jack' Kirby |
| Look Up and Live | 1963 | TV Series | Man |
| The Defenders | 1963 | TV Series | Ralph Johnson |
| The Rifleman | 1961-1963 | TV Series | Winslow Quince Mark Twain Samuel Clemens |
| 40 Pounds of Trouble | 1962 | | Louie Blanchard |
| Going My Way | 1962 | TV Series | Ray Corbin |
| Armstrong Circle Theatre | 1961-1962 | TV Series | Bradley Hayward / Neil Draper |
| Target: The Corruptors | 1962 | TV Series | Frank McCloud |
| The United States Steel Hour | 1954-1962 | TV Series | Rich Monighan |
| Ben Casey | 1961 | TV Series | Dr. Dave Taylor |
| Great Ghost Tales | 1961 | TV Series | Jerry |
| 'Way Out | 1961 | TV Series | Dr. Paul Sandham |
| The Misfits | 1961 | | Raymond Taber |
| The Twilight Zone | 1960 | TV Series | Prof. Walter Jameson Tom Bowen Maj. Hugh Skelton |
| The DuPont Show with June Allyson | 1959 | TV Series | John Tourell |
| Summer of Decision | 1959 | TV Movie | Mr. Rogers |
| Sunday Showcase | 1959 | TV Series | James Valentine |
| Schlitz Playhouse | 1954-1958 | TV Series | City attorney / Mark Quinlin / Prentice Brown / ... |
| Diamond Safari | 1958 | | Harry Jordan |
| Climax! | 1956-1957 | TV Series | Hal Carmichael / Halsey / Brooks |
| The Ford Television Theatre | 1952-1957 | TV Series | Russel Stevens / Tommy Jordan / Jason Forrester |
| General Electric Theater | 1957 | TV Series | Dr. Towne / Wayne Temple |
| Kraft Theatre | 1957 | TV Series | |
| Cavalcade of America | 1957 | TV Series | Frank O'Keefe |
| Crossroads | 1957 | TV Series | Rev. William J. Menster |
| The 20th Century-Fox Hour | 1957 | TV Series | Jack O'Leary |
| The Joseph Cotten Show: On Trial | 1956 | TV Series | Carl Wilson |
| Telephone Time | 1956 | TV Series | Samuel Howe |
| Nightmare | 1956 | | Stan Grayson |
| Front Row Center | 1956 | TV Series | George Whitaker |
| Star Stage | 1956 | TV Series | |
| Invasion of the Body Snatchers | 1956 | | Dr. Miles J. Bennell |
| Matinee Theatre | 1955 | TV Series | |
| Texaco Star Theatre | 1955 | TV Series | Dick Conley |
| An Annapolis Story | 1955 | | James R. 'Jim' Scott |
| Stranger on Horseback | 1955 | | Tom Bannerman |
| Star Tonight | 1955 | TV Series | Matt |
| Omnibus | 1954 | TV Series | |
| Goodyear Playhouse | 1954 | TV Series | |
| Satins and Spurs | 1954 | TV Movie | Tony |
| The Gambler from Natchez | 1954 | | André Rivage |
| Campbell Summer Soundstage | 1954 | TV Series | |
| Drive a Crooked Road | 1954 | | Steve Norris |
| Inner Sanctum | 1954 | TV Series | |
| Ponds Theater | 1954 | TV Series | |
| Danger | 1953 | TV Series | |
| Studio One in Hollywood | 1950-1953 | TV Series | Rochester / Dermot McDermot / Lt. Johnny Quayle |
| The Philco-Goodyear Television Playhouse | 1949-1953 | TV Series | Romeo |
| The Gulf Playhouse | 1952 | TV Series | |
| Lights Out | 1952 | TV Series | |
| Death of a Salesman | 1951 | | Biff Loman |
| The Prudential Family Playhouse | 1950-1951 | TV Series | Ben Jordan / Richard Kurt |
| Pulitzer Prize Playhouse | 1950 | TV Series | Seth Gale |
| Actor's Studio | 1949 | TV Series | |
| The Ford Theatre Hour | 1949 | TV Series | Bertram H. 'Bert' Jefferson |
| Winged Victory | 1944 | | Ronnie Meade (uncredited) |
| The Ghastly Love of Johnny X | 2012 | | The Grand Inquisitor |
| I Do | 2009 | Short | Ernie |
| Wesley | 2009 | | Bishop Ryder |
| Her Morbid Desires | 2008 | Video | The Monk |
| The Boneyard Collection | 2008 | | |
| Trail of the Screaming Forehead | 2007 | | Latecomer |
| Slipstream | 2007 | | Kevin McCarthy (as Kevin Mccarthy) |
| Fallen Angels | 2006 | | Pastor Waltz |
| Loving Annabelle | 2006 | | Father Harris |
| Eyes | 2005 | TV Series | Judge Leonard Donnelly |
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