| Film |
| Year | Title | Role | Notes |
| 1945 | Insomnia(Combat Fatigue: Insomnia) | Lucky | Uncredited, Short film for U.S. Navy |
| 1947 | Shy Guy | Philip Norton | Short |
| 1949 | Rest and Health | George | Short |
| 1950 | Last Date | Nick | Short, driver's education film. Credited as Richard York |
| 1951 | How Friendly Are You? | Phil | Short |
| 1955 | My Sister Eileen | Ted 'Wreck' Loomis | |
| 1955 | Three Stripes in the Sun | Corporal Neeby Muhlendorf | |
| 1957 | Operation Mad Ball | Corporal Bohun | |
| 1958 | Cowboy | Charlie, Trailhand | |
| 1959 | The Last Blitzkrieg | Sergeant Ludwig | |
| 1959 | They Came to Cordura | Private Renziehausen | |
| 1960 | Inherit the Wind | Bertram T. Cates | |
| 2005 | Bewitched | Darrin Stephens | Uncredited; archive footage |
| Television |
| Year | Title | Role | Notes |
| 1953 | Omnibus | Nick | Episode: "The Battler" |
| 1955 | Goodyear Television Playhouse | John Randolph | Episode: "Visit to a Small Planet" |
| 1955 | The Philco Television Playhouse | Andy | Episode: "Incident in July" |
| 1955 | Justice | | Episode: "Fatal Payment" |
| 1955–1957 | Kraft Television Theatre | | Episode: "Million Dollar RookieEpisode: "Mock Trial"Episode: "Ride into Danger" |
| 1956 | Playwrights '56 | Grayson | Episode: "Honor" |
| 1956 | Eye on New York | Lieutenant Mac Hartman | Episode: "Night of the Auk" |
| 1956–1958 | Studio One | George FoxGeorge WestonCaptain Jay Hellman | Episode: "A Man's World"Episode: "The Weston Strain"Episode: "The Enemy Within" |
| 1958 | Father Knows Best | Tom Wentworth | Episode: "Betty, The Pioneer Woman" |
| 1957 | The Kaiser Aluminum Hour | Edward Gillis | Episode: "A Real Fine Cutting Edge" |
| 1957–1963 | Alfred Hitchcock Presents | (1) Manny Coe(2) Norman Logan(3) J.J. Bunce(4) Ralph Jones(5) Tom Barton(6) Herbert J. Wiggam | Season 2 Episode 29: "Vicious Circle" (1957) as (1)Season 4 Episode 33: "The Dusty Drawer" (1959) as (2)Season 5 Episode 8: "The Blessington Method" (1959) as (3)Season 6 Episode 2: "The Doubtful Doctor" (1960) as (4)Season 7 Episode 7: "You Can't Be a Little Girl All Your Life" (1961) as (5)Season 7 Episode 34: "The Twelve Hour Caper" (1962) as (6) |
| 1958 | The United States Steel Hour | Gordon Bates | Episode: "Beaver Patrol" |
| Climax! | Gordon Bates | Episode: "Shooting for the Moon" |
| 1958–1959 | Playhouse 90 | Scott ArlenTomMatthew Sherwood | Episode: "The Last Clear Chance"Episode: "The Time of Your Life"Episode: "Made in Japan"Episode: "Out of Dust" |
| 1958, 1960 | The Millionaire | Ken Leighton Sandy Newell | Episode: "The Ken Leighton Story" Episode: "Millionaire Sandy Newell" |
| 1960 | The Untouchables | Ernie Torrance | Season 1 Episode 22: "The White Slavers" |
| Alcoa Theatre | Corporal James Sloan | Episode: "The Glorious Fourth" |
| Stagecoach West | Webb Crawford | Episode: "Three Wise Men" |
| 1960–1961 | The Twilight Zone | Captain Phil RikerHector Poole | Episode: "The Purple Testament"Episode: "A Penny for Your Thoughts" |
| 1961 | Naked City | Charles Colano | Episode: "Bullets Cost Too Much" |
| The DuPont Show with June Allyson | Lieutenant James Whitney | Episode: "School of the Soldier" |
| The Americans | Bolick | Episode: "The War Between the States" |
| General Electric Theater | Ashael Miller | Episode: "A Musket for Jessica" |
| Adventures in Paradise | Markham Jones | Episode: "The Reluctant Hero" |
| The Outlaws | Sam Nichols | Episode: "Night Riders" |
| Dr. Kildare | Harry Benton | Episode: "The Lonely Ones" |
| Frontier Circus | Jeb Randall | Episode: "The Shaggy Kings" |
| 1961, 1963 | Rawhide | Frank PriceElwood P. Gilroy | S3:E11, "Incident of the Broken Word"Episode: "Incident at Confidence Creek" |
| 1961–1964 | Wagon Train | Willie PettigrewCharley ShutupBen Mitchell | Episode: "The Clementine Jones Story"Episode: "The Charley Shutup Story"Episode: "The Michael Malone Story" |
| 1962 | Thriller | Fred Bancroft | Episode: "The Incredible Doktor Markesan" |
| 1962–1963 | Going My Way | Tom Colwell | |
| 1963 | Insight | | Episode: "Breakthrough" |
| Route 66 | Lieutenant School | Episode: "What a Shining Young Man Was Our Gallant Lieutenant" |
