| Batman Beyond | 1999 | Foreman / Harry | TV Show |
| Rocket Power | 1999 | Vice Principal Healy | TV Show |
| Invasion America | 1998 | General Gordon | TV Show |
| Brooklyn South | 1997 | Capt. Stan Jonas / Lt. Stan Jonas, IAB | TV Show |
| The Ring | 1996 | Sam Liebman (as James B. Sikking) | TV Movie |
| Dead Badge | 1995 | Wheeler / Aaron Feld | Movie |
| Whisper of the Heart | 1995 | Seiya Tsukishima (English version, voice, as James B. Sikking) | Movie |
| Dare to Love | 1995 | Ron Wells | TV Movie |
| In Pursuit of Honor | 1995 | Gen. Douglas MacArthur | TV Movie |
| Tyson | 1995 | Bill Clayton | TV Movie |
| Jake Lassiter: Justice on the Bayou | 1995 | Dr. Roger Salisbury (as James B. Sikking) | TV Movie |
| Seduced by Evil | 1994 | Nick Lindsay (as James B. Sikking) | TV Movie |
| Aaahh!!! Real Monsters | 1994 | Dr. Carson | TV Show |
| Duckman: Private Dick/Family Man | 1994 | James Madison | TV Show |
| The Pelican Brief | 1993 | FBI Director Denton Voyles (as James B. Sikking) | Movie |
| Doing Time on Maple Drive | 1992 | Phil Carter (as James B. Sikking) | TV Movie |
| Final Approach | 1991 | Col. Jason Halsey | Movie |
| Narrow Margin | 1990 | Nelson (as James B. Sikking) | Movie |
| Cop Rock | 1990 | Lt. Howard Hunter | TV Show |
| Around the World in 80 Days | 1989 | Jenks | TV Show |
| Brotherhood of the Rose | 1989 | Felix | TV Show |
| Desperado: Badlands Justice | 1989 | Kirby Clarke | TV Movie |
| The Final Days | 1989 | Elliot Richardson | TV Movie |
| Doogie Howser, M.D. | 1989 | Dr. David Howser | TV Show |
| Ollie Hopnoodle's Haven of Bliss | 1988 | Old Man (as James B. Sikking) | TV Movie |
| Too Good to Be True | 1988 | Russell Quinton (as James B. Sikking) | TV Movie |
| Tales from the Hollywood Hills: Golden Land | 1988 | Ira Sternholt (as James B. Sikking) | TV Movie |
| Bay Cove | 1987 | Nicholas Kline | TV Movie |
| Police Story: The Freeway Killings | 1987 | Mayor Cameron (as James B. Sikking) | TV Movie |
| CBS Summer Playhouse | 1987 | Lindsay | TV Show |
| Soul Man | 1986 | Bill Watson (as James B. Sikking) | Movie |
| Dress Gray | 1986 | Maj. Clifford Bassett | TV Show |
| L.A. Law | 1986 | Party Guest | TV Show |
| Morons from Outer Space | 1985 | Col. Raymond Laribee, CIA (as James B. Sikking) | Movie |
| First Steps | 1985 | Jim Davis (as James B. Skiking) | TV Movie |
| Star Trek III: The Search for Spock | 1984 | Captain Styles (as James B. Sikking) | TV Show |
| Up the Creek | 1984 | Tozer (as James B. Sikking) | Movie |
| The Jesse Owens Story | 1984 | Avery Brundage (as James B. Sikking) | TV Movie |
| Hunter | 1984 | Jack Small | TV Show |
| Who's the Boss? | 1984 | Cornelius | TV Show |
| The Star Chamber | 1983 | Dr. Harold Lewin (as James B. Sikking) | Movie |
| Outland | 1981 | Sergeant Montone (as James B. Sikking) | Movie |
| Hill Street Blues | 1981 | Lt. Howard Hunter / Sgt. Howard Hunter | TV Show |
| Ordinary People | 1980 | Ray (as James B. Sikking) | Movie |
| The Competition | 1980 | Brudenell (as James B. Sikking) | Movie |
| Trouble in High Timber Country | 1980 | Roger Lomax (as James B. Sikking) | TV Movie |
| The Electric Horseman | 1979 | Dietrich (as James B. Sikking) | Movie |
| The Misadventures of Sheriff Lobo | 1979 | Jack Wiley | TV Show |
| Paris | 1979 | Lew Castle | TV Show |
| Turnabout | 1979 | Geoffrey St. James | TV Show |
| Capricorn One | 1978 | Control Room Man (as Jim Sikking) | Movie |
| A Woman Called Moses | 1978 | McCracken | TV Show |
| Kill Me If You Can | 1977 | Mr. Lea | TV Movie |
| Eight Is Enough | 1977 | Mr. French | TV Show |
| Lucan | 1977 | Jerry Hultz | TV Show |
| Operation Petticoat | 1977 | Lt. O'Reilly | TV Show |
| Rafferty | 1977 | | TV Show |
| The Incredible Hulk | 1977 | Cliff McConnell | TV Show |
| Man from Atlantis | 1977 | Colonel Manzone | TV Show |
| Never Con a Killer | 1977 | Bricklaw | TV Movie |
| The Last Hurrah | 1977 | Monsignor Killian | TV Movie |
| Young Joe, the Forgotten Kennedy | 1977 | Commander Devril | TV Movie |
| Calling Doctor Storm, M. D. | 1977 | Bart Burton | TV Movie |
| Charlie's Angels | 1976 | Lawrence Wellman / Frisch | TV Show |
| Delvecchio | 1976 | Ned Wagner | TV Show |
| Rich Man, Poor Man - Book II | 1976 | Matthew Downey | TV Show |
| The Bionic Woman | 1976 | Ray Burns | TV Show |
| The Feather and Father Gang | 1976 | Bricklaw | TV Show |
| Ellery Queen | 1975 | Mike Hewitt | TV Show |
| Starsky and Hutch | 1975 | Ted McDermott | TV Show |
| The Terminal Man | 1974 | Ralph Friedman | Movie |
| Little House on the Prairie | 1974 | Mr. Franklin | TV Show |
| The Rockford Files | 1974 | Jeff Seales / John Hicklin | TV Show |
| The F.B.I. Story: The FBI Versus Alvin Karpis, Public Enemy Number One | 1974 | New Orleans SAC | TV Movie |
| On Guard - Bunco! | 1974 | Husband - Door-to-Door Salesman sequence (uncredited) | Short Film |
| Scorpio | 1973 | Harris | Movie |
| Coffee, Tea or Me? | 1973 | Businessman (as Jim Sikking) | TV Movie |
| Outrage | 1973 | Officer Geary | TV Movie |
| The Alpha Caper | 1973 | Henry Kellner | TV Movie |
| The President's Plane Is Missing | 1973 | Aide to Dunbar | TV Movie |
| The Six Million Dollar Man: The Solid Gold Kidnapping | 1973 | 2nd OSO Agent | TV Movie |
| Police Story | 1973 | Harris | TV Show |
| Brother on the Run | 1973 | Lt Summers | Movie |
| The Magnificent Seven Ride! | 1972 | Andy Hayes | Movie |
| The New Centurions | 1972 | Sgt. Anders | Movie |
| Gidget Gets Married | 1972 | Jim Johnson | TV Movie |
| M*A*S*H | 1972 | Finance Officer | TV Show |
| Search | 1972 | Callas | TV Show |
| The Bob Newhart Show | 1972 | Dick | TV Show |
| The Rookies | 1972 | Captain Gentry / Defense Attorney | TV Show |
| The Streets of San Francisco | 1972 | Major Frank Kramer, US Army Doctor | TV Show |
| Family Flight | 1972 | Second Controller | TV Movie |
| Man on a String | 1972 | Pipe Smoker | TV Movie |
| The Astronaut | 1972 | Astronaut Higgins | TV Movie |
| Chandler | 1971 | Bogardy (scenes deleted) | Movie |
| Escape from the Planet of the Apes | 1971 | Control Room Officer (uncredited) | Movie |
| The Night God Screamed | 1971 | Deacon Paul | Movie |
| Banyon | 1971 | Andrews | TV Show |
| Cade's County | 1971 | Harold Hopkins | TV Show |
| Cannon | 1971 | Clint / Lloyd | TV Show |
| Longstreet | 1971 | Lt. Madison | TV Show |
| Inside O.U.T. | 1971 | Patrolman (as James B. Sikking) | TV Movie |
| Columbo | 1971 | Policeman in Office | TV Show |
| Charro! | 1969 | Gunner | Movie |
| Daddy's Gone A-Hunting | 1969 | Joe Menchell | Movie |
| Love, American Style | 1969 | Leonard (segment "Love and the Intruder") | TV Show |
| Night Gallery | 1969 | State Trooper (segment "Death in the Family") / 1st Reporter (segment "The Nature of the Enemy") | TV Show |
| Room 222 | 1969 | Albert Kramer / Albert Cramer | TV Show |
| The Bold Ones: The New Doctors | 1969 | 1st Reporter | TV Show |
| The Immortal | 1969 | Administrator | TV Show |
| The Survivors | 1969 | Henson | TV Show |
| The Young Lawyers | 1969 | Joe Daley | TV Show |
| Adam-12 | 1968 | Tex | TV Show |
| Hawaii Five-O | 1968 | Oscar Ross / George Cameron | TV Show |
| Here Come the Brides | 1968 | Jenkins / Capt. Hale | TV Show |
| The Doris Day Show | 1968 | Detective Charles / Fred Sutton / Horace Bowers | TV Show |
| Mod Squad | 1968 | Dr. Webber / Major Bernard / Political Science Professor | TV Show |
| The Name of the Game | 1968 | Police Lieutenant | TV Show |
| In Like Flint | 1967 | Secret Service Man (uncredited) | Movie |
| Point Blank | 1967 | Hired Gun | Movie |
| Ironside | 1967 | Voice Print Officer Jay | TV Show |
| Mannix | 1967 | Sketchley / Mark Langdon | TV Show |
| The Invaders | 1967 | Human Capt. William Taft | TV Show |
| Sail to Glory | 1967 | George Steers | TV Movie |
| Mission: Impossible | 1966 | Wilson / Corrigan | TV Show |
| Von Ryan's Express | 1965 | American Soldier (uncredited) | Movie |
| Hogan's Heroes | 1965 | Hercules / Gestapo Officer / Private Berger | TV Show |
| Honey West | 1965 | Valentine | TV Show |
| My Mother the Car | 1965 | Sergeant Riddle / Doctor | TV Show |
| O.K. Crackerby! | 1965 | Mr. Joe Malone | TV Show |
| Run for Your Life | 1965 | Nugent / Doctor | TV Show |
| The F.B.I. | 1965 | Hair and Fibers Expert / Technician / SA Ed Spanger / ... | TV Show |
| The Loner | 1965 | Confederate Captain | TV Show |
| The Long, Hot Summer | 1965 | Doctor | TV Show |
| The Carpetbaggers | 1964 | Reporter (uncredited) | Movie |
| The Strangler | 1964 | Police Sketch Artist | Movie |
| 12 O'Clock High | 1964 | Captain Rand | TV Show |
| Gomer Pyle: USMC | 1964 | Colonel Richardson | TV Show |
| General Hospital | 1963 | Dr. James Hobart (as James B. Sikking) | TV Show |
| My Favorite Martian | 1963 | Aide | TV Show |
| The Fugitive | 1963 | Deputy Marsh / Bert / Leonard Taft | TV Show |
| The Outer Limits | 1963 | Botany / Orderly | TV Show |
| Combat! | 1962 | Lyles | TV Show |
| The Virginian | 1962 | Sanders | TV Show |
| Assignment: Underwater | 1960 | Dave Quinto | TV Show |
| Bonanza | 1959 | Kevin Maco / Jack Rimbau | TV Show |
| Rawhide | 1959 | Luke Harger | TV Show |
| Perry Mason | 1957 | Civilian Engineer | TV Show |
| Five Guns West | 1955 | Union Sergeant (uncredited) | Movie |
