Robert Irby Clarke was an actor best known for his cult classic science fiction films of the 1950s. From the 1950s through the 1980s, he regularly appeared on television series including Perry Mason, The Lone Ranger, 77 Sunset Strip, Wendy and Me, General Hospital, Marcus Welby, M.D., Dragnet, Adam-12, Trapper John, M.D., Fantasy Island, Dallas, Simon & Simon, Knight Rider, Murder She Wrote, Matt Houston, Hotel, Dynasty, Falcon Crest, and dozens of others
| Movie | The Hideous Sun Demon | 1958 |
| Movie | Ninety Nine Per Cent | 1963 |
| Movie | The Hideous Sun Demon | 1958 |
| Movie | Beyond the Time Barrier | 1960 |
| Episode |
Dynasty Oil (1) |
1981 |
| Episode |
Sea Hunt The Meet |
1961 |
| Episode |
Dragnet Public Affairs - DR-12 |
1968 |
| Episode |
Daktari Judy and the Astro Chimp |
1967 |
| Episode |
Ripcord Top Secret |
1962 |
| Episode |
The Lone Ranger Outlaw Underground |
1952 |
| Episode |
Perry Mason The Case of the Clumsy Clown |
1960 |
| Episode |
O'Hara, U.S. Treasury Operation: Hijack |
1971 |
| Episode |
Wagon Train The Clara Duncan Story |
1959 |
| Episode |
Murder, She Wrote Murder to a Jazz Beat |
1985 |
| Episode |
M Squad Debt of Honor |
1960 |
| Episode |
Dragnet Juvenile - The Little Pusher |
1969 |
| Episode |
Cheyenne Savage Breed |
1960 |
| Episode |
Trapper John, M.D. Flashback |
1979 |
| Episode |
Checkmate Interrupted Honeymoon |
1960 |
| Episode |
Defiance Pilot |
2013 |
| Episode |
Falcon Crest Finders and Losers |
1986 |
| Episode |
Dallas Hit and Run |
1982 |
| Episode |
Knight Rider Mouth of the Snake [a.k.a. All That Glitters] (1) |
1984 |
| Episode |
Dragnet The Joy Riders |
1969 |
| Episode |
Dragnet The Search |
1968 |
| Episode |
Knight Rider Mouth of the Snake [a.k.a. All That Glitters] (2) |
1984 |
| Episode |
Dragnet Juvenile - DR-05 |
1968 |
| Episode |
Hotel Forsaking All Others |
1986 |
| Episode |
77 Sunset Strip The Fix |
1960 |
| Episode |
Colt .45 Circle Of Fear |
1958 |
| Episode |
Dragnet (1951) The Big Children |
1954 |
| Episode |
77 Sunset Strip The Toy Jungle |
1963 |
| Episode |
Science Fiction Theatre Spider Inc |
1955 |
| Episode |
Dragnet (1951) The Big Betty |
1953 |
| Episode |
Dallas Deliverance |
1985 |
| Episode |
Dragnet The Hit-and-Run Driver |
1967 |
| Episode |
Matt Houston The Honeymoon Murders |
1985 |
| Episode |
Mackenzie's Raiders Eastern Colonel |
1958 |
| Episode |
Lawman The Last Man |
1959 |
| Episode |
Sea Hunt The Search |
1959 |
| Episode |
Hawaiian Eye A Night with Nora Stewart |
1962 |
| Episode |
Matt Houston Final Vows |
1985 |
| Episode |
Dragnet D.H.Q. - Night School |
1970 |
| Episode |
Dynasty The Wedding |
1982 |
| Episode |
Perry Mason The Case of the Crooked Candle |
1957 |
| Episode |
Sea Hunt Rapture of the Deep |
1958 |
| Episode |
Tabitha Tabitha's Weighty Problem |
1977 |
| Episode |
Hawaii Five-O Stringer |
1979 |
| Episode |
Bronco Night Train to Denver |
1959 |
| Episode |
Hawaiian Eye Cut of Ice |
1960 |
