1970-1982 TV show guest appearances for John Mayo:
(Episodes with dates prior to 1970 aired as reruns.)
Search for John Mayo on the Internet Movie Database
| Original Air Date | Net | Show Name | Episode Name | Character Name |
|---|---|---|---|---|
| January 18, 1970 | ABC | The F.B.I. (s5,e19) | The Diamond Millstone | 1st Bureau Supervisor |
| February 15, 1970 | ABC | The F.B.I. (s5,e23) | Return To Power | Bureau Supervisor |
| September 27, 1970 | ABC | The F.B.I. (s6,e2) | The Traitor | F.B.I. Lab Examiner |
| December 6, 1970 | ABC | The F.B.I. (s6,e11) | The Target | Crawford |
| February 7, 1971 | ABC | The F.B.I. (s6,e20) | The Replacement | Jim Woods |