(1968) 2001: A Space Odyssey

as Dr. Frank Poole

(1968) Firecreek

as Earl

(1963) It Happened at the World's Fair

as Danny Burke

(1961) Wild in the Country

as Cliff Macy

(1962) The Magic Sword

as Sir George

(1961) Splendor in the Grass

as Allen 'Toots' Tuttle

(1960) Tall Story

as Russian basketball player

(1977) Bad Georgia Road

as Leroy Hastings

(2004) Los Angeles Plays Itself

as George Matthews in Model Shop (archive footage)

(1978) The Ghost of Flight 401

as Jordan Evanhower

(1969) Model Shop

as George Matthews

(1987) The Wild Pair

as Capt. Kramer

(1974) Manhunter

as Frank Clinger

(1976) Project: Kill

as Frank Lassiter

(1971) Earth II

as David Seville

(1968) They Came to Rob Las Vegas

as Tony Ferris

(1959) Warlock

as Gang Member (uncredited)

(1979) The Incredible Journey of Doctor Meg Laurel

as Harley Moon

(1970) R.P.M.

as Rossiter

(1983) Survival Zone

as Ben

(1977) Kit Carson and the Mountain Men

as Bret Haskell

(1995) Night of the Scarecrow

as William

(1983) Emergency Room

as Dr. David Becker

(1985) Half Nelson

as ---

(2020) Unbelievable!!!!!

as Gary

(1966) 2001: A Space Odyssey - A Look Behind the Future

as Self

(1972) Stand Up and Be Counted

as Eliot Travis

(1976) The Quest: The Longest Drive

as Walter Lucas

(1992) Terror In Paradise

as Major Douglas

(1980) The Top of the Hill

as Dave Cully

(1987) The Return of the Six-Million-Dollar Man and the Bionic Woman

as John Praiser

(2016) Star Trek: Inside the Roddenberry Vault

as Self

(1981) The Girl, the Gold Watch & Dynamite

as Sheriff Earl Baker

(1974) The F.B.I. Story: The FBI Versus Alvin Karpis, Public Enemy Number One

as Fred Barker

(2024) 765874: Unification

as Gary Mitchell

(1984) Murder, She Wrote

as Sam Mercer

(1966) Star Trek

as Lt. Cmdr. Gary Mitchell

(1979) Trapper John, M.D.

as ---

(1982) T. J. Hooker

as Sgt. Carey Dunston / DEA Agent Twill

(1975) Starsky & Hutch

as ---

(1963) Kraft Suspense Theatre

as Frank Connery

(1965) The F.B.I.

as Ben Sillman

(1976) The Bionic Woman

as ---

(1981) Simon & Simon

as ---

(1968) Hawaii Five-O

as Kelsey

(1976) Charlie's Angels

as Claude

(1983) Scarecrow and Mrs. King

as ---

(1982) Hotel

as ---

(1985) MacGyver

as Grant

(1979) Hart to Hart

as ---

(1955) Gunsmoke

as Jim Stark

(1957) Perry Mason

as Davey Carroll

(1962) Combat!

as Sgt. Meider

(1970) Night Gallery

as James Figg

(1971) Cannon

as ---

(1984) Cover Up

as ---

(1961) Bus Stop

as ---

(1978) Vega$

as ---

(1973) Police Story

as ---

(1970) The Young Rebels

as ---

(1961) Follow the Sun

as ---

(1963) The Lieutenant

as Lt. William 'Bill' Rice

(1965) The Legend of Jesse James

as Clint Bethard

(1954) Summer Playhouse

as ---

(1975) Three for the Road

as ---

(1975) The Blue Knight

as ---

(1957) Perry Mason

as Young Policeman (uncredited)

(1974) The Six Million Dollar Man

as John Hopper

(1974) The Six Million Dollar Man

as Hopper

(1982) Matt Houston

as Dr. Owen Denny

(1984) Murder, She Wrote

as Tom Carpenter

(1982) Matt Houston

as Sheriff

(1972) Banacek

as Owen Russell

(1984) Finder of Lost Loves

as Stan Gallagher

(1969) Medical Center

as Dr. Carl Webson

(1972) The Streets of San Francisco

as Charley Belasco

(1966) Mission: Impossible

as Nicholas Varsi

(1973) Barnaby Jones

as Howard Lee

(1973) Barnaby Jones

as Mitch Mitchell

(1984) Murder, She Wrote

as Sheriff Deloy Hays

(1981) Simon & Simon

as Daniel C. Thacker / Eddie Blair

(1977) Hunter

as John DeLacey

(1969) Medical Center

as Lorenz

(1984) Murder, She Wrote

as Harris Talmadge

(1969) Love, American Style

as Ernie