Jasper Woodcock is the primary antagonist of the comedy film Mr. Woodcock.

He is a sadistic gym teacher known for bullying and insulting his students, including the protagonist, John Farley.  Farley grows up to be a successful self-help author and returns home to visit his mother one day, only to discover that she is dating Mr. Woodcock.  Eventually, he and Farley manage to resolve their differences and grudges, and make peace.