| Series | Role | Episode | Airdate | 
| Suspense | Mousey | 2x05 - Doctor Violet | October 4, 1949 | 
| Suspense | Sergeant | 2x06 - The Cask of Amontillado | October 11, 1949 | 
| Suspense (credited as Ray Wallston)
 | Herbert the Hook | 2x28 - The Parcel | March 14, 1950 | 
| You Are There | General Sherman | 2x14 - The Gettysburg Address | November 29, 1953 | 
| The Web |  | 4x27 - Night Fare | March 21, 1954 | 
| Justice |  | 1x13 - Call Me Guilty | July 1, 1954 | 
| Studio One | Mickey | 6x45 - The Hero | July 26, 1954 | 
| Suspense |  | 6x46 - The Iron Cop | August 10, 1954 | 
| Producers' Showcase | Spike McManus | 1x02 - State of the Union | November 15, 1954 | 
| Producers' Showcase |  | 1x03 - Dateline | December 13, 1954 | 
| You Are There | Captain Hawks | 3x28 - D-Day | March 6, 1955 | 
| Hallmark Hall of Fame | Dave Corween | 6x05 - There Shall Be No Night | March 17, 1957 | 
| Playhouse 90 | Partridge | 3x05 - Shadows Tremble | October 23, 1958 | 
| Buick-Electra Playhouse |  | 1x01 - The Killers | November 19, 1959 | 
| Outlaws | Judge Adams | 1x03 - Beat the Drum Slowly | October 20, 1960 | 
| Play of the Week | Uncle Harry | 2x11 - Uncle Harry | December 5, 1960 | 
| The Aquanauts | Carl Friendly | 1x18 - The Armored Truck Adventure | February 15, 1961 | 
| Shirley Temple's Storybook | Sting Ray | 2x22 - The Little Mermaid | March 5, 1961 | 
| Way Out |  | 1x02 - The Down Car | April 7, 1961 | 
| The Americans | Whit Bristow | 1x13 - The Bounty Jumpers | April 17, 1961 | 
| Outlaws | Willie Wexler | 2x04 - The Cut Ups | October 26, 1961 | 
| Target: The Corruptors | O'Sullivan | 1x07 - Touch of Evil | November 10, 1961 | 
| Cain's Hundred | Manny Sterns | 1x10 - In the Balance | November 28, 1961 | 
| Cain's Hundred | Rockham | 1x11 - Five for One | December 5, 1961 | 
| Adventures in Paradise | Frank Hoag | 3x23 - A Bride for the Captain | March 11, 1962 | 
| Saints and Sinners | Larry Briggs | 1x04 - Judgement in Jazz Alley | October 8, 1962 | 
| Wide Country | Arthur Callan | 1x09 - The Girl in the Sunshine Smile | November 15, 1962 | 
| Ben Casey | Councilman York | 2x23 - The White Ones Are Dolphins | March 11, 1963 | 
| Going My Way | Willie Henratty | 1x26 - The Reformation of Willie Henratty | March 27, 1963 | 
| Summer Playhouse | The Stranger | Satan's Waitin' | September 12, 1964 | 
| The Wild Wild West | Prof. Henry Johnson | 3x08 - The Night of Montezuma's Hordes | October 27, 1967 | 
| Custer | Ned Quimbo | 1x08 - Breakout | November 1, 1967 | 
| Garrison's Gorillas | Oscar | 1x14 - The Great Crime Wave | December 5, 1967 | 
| Love, American Style | Mr. Wood | 1x15 - Love and the Boss's Ex / Love and Mr. Nice Guy / Love and the Gangster | January 12, 1970 | 
| The Mod Squad | J.B. | 3x20 - A Double for Danger | February 23, 1971 | 
| Ironside | Walter Butler | 5x05 - Ring of Prayer | October 12, 1971 | 
| Love, American Style | Coach | 3x17 - Love and the Fullback | January 21, 1972 | 
| Mission: Impossible | Dr. Victor Flory | 7x05 - TOD-5 | October 14, 1972 | 
| The Paul Lynde Show | Mr. Tamura | 1x11 - Meet Aunt Charlotte | November 29, 1972 | 
| Bridget Loves Bernie | Salesman | 1x18 - With This Ring | January 20, 1973 | 
| The Evil Touch | Professor Jonathan Slater | 1x14 - Dear Beloved Monster | December 16, 1973 | 
| The Evil Touch | Lon Zachary | 1x18 - The Trial | February 3, 1974 | 
| The Rookies | Melrose | 3x14 - Take Over | December 30, 1974 | 
| Ellery Queen | Howard Pratt | 1x01 - The Adventure of Auld Lang Syne | September 11, 1975 | 
| The Six Million Dollar Man | Horton Budge | 4x11 - A Bionic Christmas Carol | December 12, 1976 | 
| Flying High | Desk clerk | 1x05 - In the Still of the Night | October 27, 1978 | 
| Starsky & Hutch | Tommy Reese | 4x13 - The Golden Angel | January 16, 1979 | 
| The Incredible Hulk | Jasper the Great | 3x05 - My Favorite Magician | October 26, 1979 | 
| Little House on the Prairie | Jimmy Hart | 6x09 - The King Is Dead | November 12, 1979 | 
| Buck Rogers in the 25th Century | Roderick Zale | 1x11 - Cosmic Wiz Kid | November 15, 1979 | 
| Code Red | Asa Armstrong | 1x05 - All That Glitters | November 29, 1981 | 
| Trapper John, M.D. | Sidewalk Santa | 3x09 - 'Tis the Season | December 20, 1981 | 
| The Littlest Hobo | Charlie | 3x16 - A Special Friend | February 25, 1982 | 
| Fame | Birdie Whelan | 1x14 - A Big Finish | April 15, 1982 | 
| Hart to Hart | Elliott Laurence | 4x06 - Harts' Desire | November 16, 1982 | 
| Simon & Simon | Rockwell Stark | 2x11 - Murder Between the Lines | January 6, 1983 | 
| Fantasy Island | The Mayor | 6x18 - The Devil Stick / Touch and Go | March 19, 1983 | 
| Oh Madeline | Madeline's Father | 1x16 - My Mother the Carnal | January 31, 1984 | 
| Gimme a Break | Andy | 3x21 - The Center | April 19, 1984 | 
| Newhart | Claude Darling | 3x01 - Tell a Lie, Get a Check | October 15, 1984 | 
| Night Court | Judge Martin A. Landis | 2x07 - Harry on Trial | November 15, 1984 | 
| The Love Boat | Max Phelps | 8x15 - Santa, Santa, Santa / Another Dog Gone Christmas / Noel's Christmas Carol | December 15, 1984 | 
| Trapper John, M.D. | Rusty/Harold Brandon | 6x13 - Buckaroo Bob Rides Again | January 20, 1985 | 
| Otherworld | Gad-Ben Sirrah | 1x01 - Rules of Attraction | January 26, 1985 | 
| Still the Beaver | Gustav Rychard | 1x07 - The Piano Lesson | January 30, 1985 | 
| Matt Houston | Det. St. Claire | 3x18 - New Orleans Nightmare | February 8, 1985 | 
| Brothers | Guy | 2x03 - The Fourth Ball | May 9, 1985 | 
| The New Leave It to Beaver | Gustav Rychard | 3x02 - Dear Pen Pal II | October 12, 1987 | 
| Silver Spoons | Uncle Harry | 4x06 - The Trouble with Harry | November 13, 1985 | 
| Silver Spoons | Uncle Harry | 4x08 - Race with Eagles | November 17, 1985 | 
| Misfits of Science | Barney | 1x07 - Sonar... And Yet So Far | November 29, 1985 | 
| Silver Spoons | Uncle Harry | 4x11 - The Barbarians | December 8, 1985 | 
| Simon & Simon | Real-estate Magnate | 5x10 - Walk a Mile in My Hat | December 12, 1985 | 
| Smurfs | additional voices | 6x01 - Smurfquest (1) | September 13, 1986 | 
| Smurfs | additional voices | 6x01 - Smurfquest (2) | September 13, 1986 | 
| The Wonderful World of Disney | Harmon | 31x05 - Ask Max | November 2, 1986 | 
| ABC Weekend Specials | Matt | 10x04 - The Mouse and the Motorcycle | November 8, 1986 | 
| Smurfs | Teacher | 6x28 - The World According to Smurflings | November 15, 1986 | 
| Smurfs | Teacher | 6x28 - The Enchanted Quill | November 15, 1986 | 
| Simon & Simon | Danny 'The Milwaukee Kid' Chesney | 6x14 - For Old Crime's Sake | January 15, 1987 | 
| St. Elsewhere | Dr. Arrowsmith | 5x15 - Getting Ahead | January 28, 1987 | 
| 21 Jump Street | Judge Desmond | 2x01 - In the Custody of a Clown | September 20, 1987 | 
| Sledge Hammer! | Professor Amos McCoy | 2x02 - Big Nazi on Campus | September 24, 1987 | 
| Murder, She Wrote | Q. L. Frubson | 4x05 - The Way to Dusty Death | October 25, 1987 | 
| The Law & Harry McGraw |  | 1x09 - State of Art | November 24, 1987 | 
| Friday the 13th | Jay Star | 1x10 - Tales of the Undead | January 25, 1988 | 
| Superboy | Professor Abel Gordon | 1x04 - The Russian Exchange Student | October 29, 1988 | 
| ABC Weekend Specials | Matt | 11x03 - Runaway Ralph | October 29, 1988 | 
| Live-In |  | 1x08 - Daddy's Girl | May 22, 1989 | 
| Paradise | Alexander R. R. Morgan | 2x01 - A Gather of Guns | September 10, 1989 | 
| L.A. Law | Gus Nivens | 4x20 - Forgive Me Father, For I Have Sued | May 3, 1990 | 
| ABC Weekend Specials | Matt | 12x01 - Ralph S. Mouse | February 16, 1991 | 
| Parker Lewis Can't Lose | Augie | 1x26 - Parker Lewis Can't Win | May 19, 1991 | 
| Dream On | Father Augustine | 2x11 - The Charlotte Letter | September 15, 1991 | 
| Eerie, Indiana | Ned | 1x16 - The Loyal Order of Corn | March 22, 1992 | 
| Star Trek: The Next Generation | Boothby | 5x19 - The First Duty | March 28, 1992 | 
| The Commish | Burt Hagstone | 2x05 - The Witches of Eastbridge | October 31, 1992 | 
| The Stand | Glen Bateman | 1x02 - The Dreams | May 9, 1994 | 
| The Stand | Glen Bateman | 1x03 - The Betrayal | May 11, 1994 | 
| The Stand | Glen Bateman | 1x04 - The Stand | May 12, 1994 | 
| Dave's World | Judge Stone | 4x04 - Crime and Coconuts | October 4, 1996 | 
| Dr. Quinn, Medicine Woman | Lucius Slicker | 5x07 - Right or Wrong | November 2, 1996 | 
| Dr. Quinn, Medicine Woman | Lucius Slicker | 5x08 - Remember Me | November 9, 1996 | 
| 7th Heaven | Sgt. Millard | 3x06 - And the Home of the Brave | November 2, 1998 | 
| Star Trek: Voyager | Boothby | 5x04 - In the Flesh | November 4, 1998 | 
| Star Trek: Voyager | Boothby | 5x19 - The Fight | March 24, 1999 | 
| Ally McBeal | Minister Breyer | 3x01 - Car Wash | October 25, 1999 | 
| Touched by an Angel | Benjamin Clay | 7x01 - The Face on the Barroom Floor | October 15, 2000 |