Leslie Nielsen in Seasons 1 and 5
Of course, Leslie Nielsen needs no introduction. The hilariously serious star of Airplane and Naked Gun made not one but two Columbo appearances playing, as always, a straight shooter. He was particularly good as the troubled lover Peter Hamilton in Season One’s “Lady in Waiting.”
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Then, in 1975, he was cast again and against his type as something of a loopy character in Season 5’s “Identity Crisis,” where he was clubbed to death by Patrick McGoohan.
The next celebrity cameo is a little more of an Easter egg of sorts…