Third of four appearances by Patrick McGoohan as a murderer in the Columbo series. The other episodes are: By Dawn's Early Light (1974) (as Col. Rumford), Identity Crisis (1975) (as Intelligence agent Nelson Brenner), and Columbo: Ashes to Ashes (1998) (as funeral company owner Eric Prince). Moreover, McGoohan directed this episode.
Patrick McGoohan won his second Emmy Award in Columbo for his performance as Oscar Finch. He previously won Outstanding Guest Actor in By Dawn's Early Light (1974).
When Columbo parks his car and looks under it, the car to the left has the same license plate (2ABI345) as the white limousine prominently featured in the preceding episode.