| Patrick Bauchau |  Appeared in 1 Episode Murder, A Self Portrait |
| Ian Buchanan |  Appeared in 1 Episode Columbo Cries Wolf |
| Partick McGoohan |  Appeared in 4 Episodes , Murderer in By Dawn's Early Light, Identity Crisis, Agenda For Murder, Ashes to Ashes |
| Helen Shaver |  Appeared in 1 Episode Rest In Peace, Mrs Columbo |
| James Read |  Appeared in 1 Episode Uneasy Lies The Crown |
| Andrew Stevens |  Appeared in 1 Episode Murder In Malibu |