Office Scenes Coming Up

This Sunday we're shooting the scenes in the office. I really have to get cracking on my lines. I came down with the flu yesterday and am just now getting up and about. So that's gonna cut into my time to memorize lines.

I'm trying to make up my mind... I have my winter beard, but would Columbo have a beard? I'm not trying to do a direct impersonation of Columbo, but I do want to capture his "trustable messy goofball genius" persona.