William Conrad starred as Frank Cannon in the above-average QM TV series Cannon, but he was a lousy Nero Wolfe. As a matter of fact, I challenge any viewer to name anything different in his portrayal of those two detectives. Conrad was a limited actor who only ever portrayed one character: William Conrad. (A great radio actor, though; he was Marshall Dillon on Gunsmoke on the radio, among other things. What a voice!) Lee Horsley was a good Archie Goodwin, but Alan Miller as Cramer was a hopeless piece of miscasting. The series thankfully was cancelled very quickly, and the Wolfe legend lives on through the novels. (BTW, the A&E series with Maury Chaykin and Timothy Hutton is quite good and worth watching for cast member Kari Matchett alone.)
Review of Nero Wolfe
