Spot on with MH. As Shaggy, all I had to say was "zikes" a couple of times in a sketch that barely lasted a few seconds. I was gutted to have missed my opportunity to have at least 2 seconds in the spotlight.Now, I don't even remember Shaggy being in the production!
Therefore, no help with guessing you, but I'm going to take a wild stab in the dark and go for MH.