I was watching the Don Knotts movie The Ghost and Mr. Chicken (see trailer below) and the segments in the haunted house, with its small and densly detailed rooms, and all the cliches such as secret passages, cobwebs everywhere, pictures that change, and a creepy organ that plays by itself all made me think of Luigi's Mansion: Dark Moon.

     Then it hit me. Don Knotts acts just like Luigi! They both whistle in the dark, act nervous and are scared of everything all the time. If Luigi actually had dialog, I think Don Knotts would be the perfect person to do it... except that he died in 2006. But if Luigi was in a live action movie, I would direct the actor to do as Don Knotts did.