In October 1995 , Kato Kaelin made an appearance on the FOX sketch comedy MADtv .
Kaelin made a cameo appearance on the HBO sketch comedy , Mr. Show , during the show 's first season ( Nov. 1995 ) - in the episode entitled `` We Regret to Inform You '' , he shows up at lobotomized actor Borden Grote 's party .
Kato Kaelin