Answer: Mike Starr
Starr, born in 1950 in Queens, New York, was cast as Joe Mentalino. Joe was involved in the kidnapping of Mary's husband and pursued Harry and Lloyd when he found out they had the briefcase that contained the ransom money for him. Near the middle of the movie, Joe hitchhiked and got Harry and Lloyd to drive him to Davenport, Iowa. On the way there, Harry and Lloyd annoyed Mr. Mentalino with their singing and playing silly games. They stopped at a diner, and this was where Harry and Lloyd made a mess with ketchup and mustard. Mr. Mentalino went outside and made a call to Nicholas Andre and he promised Nicholas that he would poison them with rat poison. When Mr. Mentalino came back inside, he took a bite out of his burger but he started to choke when he realized both Harry and Lloyd laced it with an atomic red pepper. Mr. Mentalino told them to get his pills and they got his pills and gave it to him. However, Mr. Mentalino realized they actually gave him the rat poison instead of his medication and he died. Starr had guest starring stints on the TV shows "NewsRadio", "Frasier", and "3rd Rock from the Sun."