I may be way off here, but was that Patrick Stewart doing an American accent as Buckle the mountain man?
(Basing this one some of the vowel sounds, especially when his voice was raised, and *especially* the "La-la-la-la-la" as the Smiths drove away.)
I thought it was Will Ferrel...nothing in the credits?
"So, I'm sitting there hearing HAL say, "I'm sorry Dave, I'm afraid I can't do that...", and I'm thinkin, Damn!, I knew we should have gone with a Mac..." David Bowman, 2001
[email] writes:
I don't remember seeing him listed as a guest star... just Lisa Edelstein and Elliot Gould.