I'm surprised no one knew that Val Kilmer has/had throat cancer and thats why his voice was all fucked up and he looks weird (for a lack of a more poetic description).... I get the feeling they wouldn't have been riffing on that if they knew why.... eeek.
Overall.. not the best the episode.. the guests jokes just did not land at all. Still fascinated by The Snowman, I'll have to watch it.