Bart Johnson as Coach Jack Bolton
Jack Bolton is played by Bart Johnson in Disney's made-for-TV film,
High School Musical. He is an alumni of East High, where he became part of the basketball team, and now serves as the team coach. He is the father of Troy, the team captain, whom he expects to follow in his footsteps as a basketball star. He often gets into arguments with the drama teacher, Ms. Darbus because of their contrast of interests. He dislikes the fact that Troy is interested in theater performance, as Jack believes that basketball is his son's only passion. He also disapproves of Troy's relationship with Gabriella, as Jack sees her as a distraction for his son.
In the second installment of the film, however, it seems that Jack had already accepted Troy's other talents and his relationship with Gabriella. The first part of the film showed him happy and proud of his son, who helped the basketball team win the championships.
(Photo courtesy of IMDB)