Willie Munk is the titular and supporting character of Willie and Michael comic and animated series.

Willie is energetic, caring, stubborn, mischievous, impulsive, and athletic. Willie also plays video games and gets into mischief with his friends at school. He's a known prankster that pranks people around town with his friends. Willie is protective of his close friend, Michael, and would fight for him when needed. At times he could be short-tempered when annoyed or when someone harms Michael.

Willie isthe youngest of his two older brothers, Elmore and Ronny. All three brothers are brown and black bear hybrids. Willie is 10 years old.

Willie's birthday is January 21st.

Willie's first public appearance was on the Willie and Elmore show pilot in 2009 on YouTube.