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| Title | Year | Status | Character |
|---|
| Free for All | 1949 | Pilot |
| The Doctor and the Girl | 1949 | Surgeon at Bellevue (uncredited) |
| Task Force | 1949 | Capt. Ken Willliamson (uncredited) |
| I Was a Male War Bride | 1949 | Red - Yeoman First Class (uncredited) |
| The Great Sinner | 1949 | Cabbie (uncredited) |
| Illegal Entry | 1949 | Dave (uncredited) |
| The Stratton Story | 1949 | Detroit Player (uncredited) |
| He Walked by Night | 1948 | Detective Questioning Pete (uncredited) |
| Beyond Glory | 1948 | Bit Role (uncredited) |
| This Time for Keeps | 1947 | Redheaded Soldier at Pool (uncredited) |
| Dangerous Venture | 1947 | Red (as Ken Tobey) |
| The Front Page | 1945 | TV Movie |
| The Naked Monster | 2005 | Col. Patrick Hendry |
| The Angry Beavers | 1997 | TV Series | Scientist / General |
| Hellraiser: Bloodline | 1996 | Hologram-Priest (uncredited) |
| Body Shot | 1994 | Arthur Lassen |
| Star Trek: Deep Space Nine | 1994 | TV Series | Rurigan |
| Bob | 1992 | TV Series | Gus the Security Guard |
| Single White Female | 1992 | Desk Clerk (as Ken Tobey) |
| Honey I Blew Up the Kid | 1992 | Smitty |
| Desire and Hell at Sunset Motel | 1991 | Capt. Holiday |
| L.A. Law | 1991 | TV Series | Judge Kent Watson |
| Gremlins 2: The New Batch | 1990 | Projectionist |
| Ghost Writer | 1989 | Cop #2 |
| Freeway | 1988 | Monsignor Kavanaugh |
| Big Top Pee-wee | 1988 | Sheriff |
| Night Court | 1985-1988 | TV Series | Judge Harrison Kemp |
| Hunter | 1987 | TV Series | Father Cusack |
| Innerspace | 1987 | Man in Restroom (as Ken Tobey) |
| Starman | 1986 | TV Series | Conrad Bennett |
| The Twilight Zone | 1986 | TV Series | Sheriff Haskin (segment "A Day in Beaumont") |
| The Lost Empire | 1984 | Capt. Hendry |
| Gremlins | 1984 | Mobil Gas Station Attendant (uncredited) |
| Falcon Crest | 1984 | TV Series | Judge Randolph Winthrop |
| Strange Invaders | 1983 | Arthur Newman |
| The Howling | 1981 | Older Cop |
| Airplane! | 1980 | Air Controller Neubauer |
| Galactica 1980 | 1980 | TV Series | Sheriff |
| Battles: The Murder That Wouldn't Die | 1980 | TV Movie | Chuck Parks |
| Hero at Large | 1980 | Firechief |
| Vega$ | 1979 | TV Series | Bill Woods |
| Barnaby Jones | 1975-1979 | TV Series | Ron Hagarty / Sheriff Tommy Allen / Sheriff |
| Emergency! | 1973-1978 | TV Series | Captain Gordon Trigg / Crane Operator / Doug Barton |
| Goodbye, Franklin High | 1978 | Police Captain |
| Wild and Wooly | 1978 | TV Movie | Mark Hannah |
| The Rockford Files | 1977-1978 | TV Series | University Police Chief Max Kilmore / Captain |
| Nowhere to Run | 1978 | TV Movie | Mohr (as Ken Tobey) |
| Don't Push, I'll Charge When I'm Ready | 1977 | TV Movie | Oliver |
| The Hardy Boys/Nancy Drew Mysteries | 1977 | TV Series | Philip Chandler |
| MacArthur | 1977 | Admiral Halsey |
| Most Wanted | 1977 | TV Series | Harbor Master |
| Gibbsville | 1976-1977 | TV Series | Chief Edmundson |
| The Streets of San Francisco | 1974-1976 | TV Series | Commander Judd / Sheriff Kenney / Sheriff Holloway |
| Gus | 1976 | Asst. Warden |
| Baby Blue Marine | 1976 | Buick Driver (as Ken Tobey) |
| W.C. Fields and Me | 1976 | Parker (uncredited) |
| Little House on the Prairie | 1976 | TV Series | Barrett |
| Starsky and Hutch | 1975 | TV Series | Andy Wilkins |
| Columbo | 1975 | TV Series | Police Commissioner |
| The Family Holvak | 1975 | TV Series | McGrath |
| Petrocelli | 1975 | TV Series | Jason Strafford |
| The Wild McCullochs | 1975 | Larry Carpenter |
| S.W.A.T. | 1975 | TV Series | Sergeant |
| Get Christie Love! | 1974-1975 | TV Series |
| Movin' On | 1975 | TV Series | Richardson |
| The Missiles of October | 1974 | TV Movie | Adm. George W. Anderson Jr., Chief of Naval Operations |
| Police Story | 1973-1974 | TV Series | Det. Fowler / McWalters |
| McMillan & Wife | 1974 | TV Series | Sgt. Halliday |
| The ABC Afternoon Playbreak | 1974 | TV Series | Powell |
| The Rookies | 1972-1974 | TV Series | Officer Corbett / Radio Officer / Officer Rankin |
| Ironside | 1970-1974 | TV Series | Mahoney / Lt. Reynolds |
| Homebodies | 1974 | Construction Boss |
| Dirty Mary Crazy Larry | 1974 | Donahue |
| Chopper One | 1974 | TV Series | Sergeant Reardon |
| Firehouse | 1974 | TV Series | Barkham |
| Adam-12 | 1970-1974 | TV Series | Don Bates / Sgt. Bert Strong / Lt. King |
| The Death Squad | 1974 | TV Movie | Hartman |
| The New Perry Mason | 1973 | TV Series | Detective Naismith |
| Mannix | 1970-1973 | TV Series | Ted Bailey / Sheriff / Sheriff Wells |
| The Alpha Caper | 1973 | TV Movie | Police Captain |
| Coffee, Tea or Me? | 1973 | TV Movie | Captain |
| Kung Fu | 1973 | TV Series | Sheriff Ingram |
| Walking Tall | 1973 | Augie McCullah |
| Alias Smith and Jones | 1971-1972 | TV Series | Sheriff Kimball / Sheriff Slocum |
| Night Gallery | 1972 | TV Series | Warden |
| Rage | 1972 | Col. Alan A. Nickerson |
| Gunsmoke | 1960-1972 | TV Series | Ed Terrall / Bob Mathison / Fickett / ... |
| The Crooked Hearts | 1972 | TV Movie | Fisherman |
| Cannon | 1972 | TV Series | Sgt. Fred Macklin |
| The Candidate | 1972 | Floyd J. Starkey |
| Ben | 1972 | Engineer |
| Cade's County | 1972 | TV Series | Arnold Lowell |
| Fireball Forward | 1972 | TV Movie | Gen. Dawson |
| Longstreet | 1972 | TV Series | Lieutenant Gifford |
| Bonanza | 1968-1972 | TV Series | Notary / Josiah Heath |
| O'Hara, U.S. Treasury | 1971 | TV Series | Colonel Phillips |
| The F.B.I. | 1971 | TV Series | Barstow |
| Terror in the Sky | 1971 | TV Movie | Capt. Wilson |
| Billy Jack | 1971 | Deputy Mike (as Ken Tobey) |
| Lassie: Peace Is Our Profession | 1970 | TV Movie | Colonel Bill Morgan |
| Breakout | 1970 | TV Movie | Ranger |
| Men at Law | 1970 | TV Series | Lt. Everton |
| The Virginian | 1967-1970 | TV Series | Sheriff Howard Acton / Joe Pierce / Sheriff Dan Porter / ... |
| The Andersonville Trial | 1970 | TV Movie | The Board of Military Judges (as Ken Tobey) |
| It Takes a Thief | 1970 | TV Series | Captain |
| Lassie | 1960-1969 | TV Series | Luke Moran / Tom Anderson / Jim Dixon / ... |
| Marlowe | 1969 | Sgt. Fred Beifus |
| The Outsider | 1969 | TV Series | Joe Kester |
| Family Affair | 1969 | TV Series | Steve Jackson |
| The Outcasts | 1968 | TV Series | Sheriff Garrett |
| Judd for the Defense | 1968 | TV Series | Dr. Yale Udall |
| I Spy | 1967-1968 | TV Series | Russ Conway / Gabe |
| Daktari | 1967 | TV Series | Col. Simon Tredwell |
| Iron Horse | 1967 | TV Series | Patch |
| A Time for Killing | 1967 | Sgt. Cleehan |
| Daniel Boone | 1967 | TV Series | Taggart |
| A Man Called Adam | 1966 | Club Owner |
| 40 Guns to Apache Pass | 1966 | Corporal Bodine |
| Our Private World | 1965 | TV Series | Dick Robinson |
| The Defenders | 1965 | TV Series | Blakey |
| Temple Houston | 1964 | TV Series | Dan Powers |
| Grindl | 1964 | TV Series | Jack |
| The Lieutenant | 1963 | TV Series | Sergeant Baker |
| Arrest and Trial | 1963 | TV Series | Bill Latham |
| The Dick Powell Theatre | 1963 | TV Series | Burke O'Hara |
| Stoney Burke | 1963 | TV Series | Ryan |
| Stark Fear | 1962 | Cliff Kane |
| Perry Mason | 1960-1962 | TV Series | Deputy D.A. Jack Alvin
Asst. District Attorney Alvin |
| Frontier Circus | 1962 | TV Series | Frank Mitchell / Marshal Walden |
| Target: The Corruptors | 1962 | TV Series | Delaney |
| Ripcord | 1962 | TV Series | Reverend Dr. Darrell |
| Lawman | 1960-1961 | TV Series | Duncan Clooney / Tom Bishop |
| X-15 | 1961 | Col. Craig Brewster |
| Sea Hunt | 1961 | TV Series | Pete Butler |
| Have Gun - Will Travel | 1961 | TV Series | Tim Decker |
| Make Room for Daddy | 1961 | TV Series | Coach Fred Farrell |
| Tallahassee 7000 | 1961 | TV Series | Sheriff Sid McCall |
| The Americans | 1961 | TV Series | Lt. Jones |
| Death Valley Days | 1960 | TV Series | Colonel Madison Lake |
| Bronco | 1960 | TV Series | Walt Campbell |
| Seven Ways from Sundown | 1960 | Texas Ranger Lieutenant Herly |
| 77 Sunset Strip | 1960 | TV Series | Coach Jarech |
| Overland Trail | 1960 | TV Series | Wyatt Cady |
| The Rebel | 1960 | TV Series | Major Quincy Bannister |
| Bat Masterson | 1960 | TV Series | Reed Amherst |
| Whirlybirds | 1957-1960 | TV Series | Chuck Martin |
| Alfred Hitchcock Presents | 1959 | TV Series | Jeff |
| Laramie | 1959 | TV Series | Joe Tanner |
| Wanted: Dead or Alive | 1959 | TV Series | Vince Slater |
| Walt Disney's Wonderful World of Color | 1955-1959 | TV Series | Jocko / Shorty / Anthoney Murphy / ... |
| Jefferson Drum | 1958 | TV Series | John Wallach |
| Behind Closed Doors | 1958 | TV Series | Colonel Pete Kellogg |
| Cry Terror! | 1958 | Agent Frank Cole |
| Navy Log | 1958 | TV Series | Captain Bright |
| The Restless Gun | 1957 | TV Series | Sheriff Cash Harcourt |
| Jet Pilot | 1957 | Sergeant (uncredited) |
| The O. Henry Playhouse | 1957 | TV Series |
| The Vampire | 1957 | Sheriff Buck Donnelly |
| Gunfight at the O.K. Corral | 1957 | Bat Masterson |
| Code 3 | 1957 | TV Series | Ward Hooper |
| Panic! | 1957 | TV Series | John Edward Brester |
| Crossroads | 1957 | TV Series | Mr. Alston |
| The Sheriff of Cochise | 1957 | TV Series | Jim Callahan |
| The Wings of Eagles | 1957 | Capt. Herbert Allen Hazard |
| The Search for Bridey Murphy | 1956 | Rex Simmons |
| Conflict | 1956 | TV Series | Larry |
| Warner Brothers Presents | 1956 | TV Series |
| Frontier | 1955-1956 | TV Series | Elmo / Gabe Sharp / Wade Trippe |
| Schlitz Playhouse | 1953-1956 | TV Series | Lt. Lambert / Sergeant Tim Vernon |
| Telephone Time | 1956 | TV Series |
| The Great Locomotive Chase | 1956 | Anthony Murphy |
| Celebrity Playhouse | 1956 | TV Series | Jim Weston |
| Father Knows Best | 1956 | TV Series | Jack Bramer |
| Science Fiction Theatre | 1955-1956 | TV Series | Frank Davis / Lieutenant Dunne |
| The Man in the Gray Flannel Suit | 1956 | Lt. Hank Mahoney (uncredited) |
| The Steel Jungle | 1956 | Dr. Lewy |
| The Loretta Young Show | 1954-1955 | TV Series | Harry Potter / David Whitney |
| It Came from Beneath the Sea | 1955 | Cmdr. Pete Mathews |
| Fireside Theatre | 1952-1955 | TV Series | Joe Ellison / Larsen |
| TV Reader's Digest | 1955 | TV Series | Herbert |
| Climax! | 1955 | TV Series | Captain Coppedge |
| Rage at Dawn | 1955 | Monk Claxton |
| Public Defender | 1954-1955 | TV Series | Sgt. Angel / Don Nelson |
| The Eddie Cantor Comedy Theater | 1955 | TV Series | Frank |
| The Whistler | 1955 | TV Series | Lt. Thorp |
| Captain Fathom | 1955 | TV Movie | Jack Clyde (as Ken Tobey) |
| The Steel Cage | 1954 | Steinberg, Convict Painter (segment "The Face") |
| Treasury Men in Action | 1954 | TV Series |
| Down Three Dark Streets | 1954 | FBI Agent Zack Stewart |
| Ring of Fear | 1954 | Shreveport |
| The Lone Wolf | 1954 | TV Series | Johnny Martin |
| Your Favorite Story | 1953-1954 | TV Series |
| Cavalcade of America | 1954 | TV Series |
| Mayor of the Town | 1954 | TV Series | Driscoll |
| The Ford Television Theatre | 1953 | TV Series |
| The Bigamist | 1953 | Tom Morgan, Defense Attorney |
| Fighter Attack | 1953 | George |
| The Courtship of Miles Standish | 1953 | TV Movie |
| Lux Video Theatre | 1953 | TV Series |
| The Beast from 20,000 Fathoms | 1953 | Col. Jack Evans |
| Dragnet | 1953 | TV Series |
| Angel Face | 1953 | Bill Crompton |
| Biff Baker, U.S.A. | 1952 | TV Series | Tommy Allen |
| The Unexpected | 1952 | TV Series | Brode |
| The Thing from Another World | 1951 | Captain Patrick Hendry |
| Rawhide | 1951 | Lt. Wingate (uncredited) |
| Up Front | 1951 | Cooper (uncredited) |
| The Company She Keeps | 1951 | Rex Fisher (uncredited) |
| The Flying Missile | 1950 | Crewman Pete McEvoy |
| Three Secrets | 1950 | Officer (uncredited) |
| Right Cross | 1950 | Ken, the Third Reporter (as Ken Tobey) |
| Kiss Tomorrow Goodbye | 1950 | Det. Fowler |
| My Friend Irma Goes West | 1950 | Pilot |
| The Gunfighter | 1950 | Swede (uncredited) |
| The Lone Ranger | 1950 | TV Series | Gil Jackson |
| Love That Brute | 1950 | Henchman #1 in Cigar Store (uncredited) |
| One Way Street | 1950 | Cop at Second Accident (uncredited) |
| When Willie Comes Marching Home | 1950 | Lt. K. Geiger (uncredited) |
| The File on Thelma Jordon | 1950 | Police Photographer (uncredited) |
| Twelve O'Clock High | 1949 | Sgt. Keller - Guard at Gate (uncredited) |