How many movies have Ken Boyer and Maurice LaMarche collaborated on?

They have worked on 2 movies together! Their first movie together was Tiny Toon Adventures: How I Spent My Vacation (1992) while their highest rated movie together was Mickey's Magical Christmas: Snowed in at the House of Mouse (2001). They have not worked together since Mickey's Magical Christmas: Snowed in at the House of Mouse (2001).