John Clark had minor roles, mainly in western films between the late 1950s to late 1970's , such as Battle of the Bulge, The Desperados, A Town Called Hell and El Condor.
| Movie | Running on Empty | 1982 |
| Movie | Callan | 1974 |
| Episode |
For the People To Prosecute All Crimes |
1965 |
| Episode |
Las Vegas Fake The Money And Run |
2005 |
