Cannon
To Kill a Guinea Pig
Season 1, Episode 18 · Aired 1972-02-01
Synopsis
When thugs threaten a prison researcher, her superior hires Cannon to find out why.
In the series
This episode is part of Cannon (1971–1976) on CBS.
William Conrad as the heavyweight PI who never needs to look like a leading man.
Key cast
- William Conrad as Frank Cannon