Why Was William Katt Replaced On Perry Mason? The Shocking Truth

William Katt starred as Ken Malansky in the first three Perry Mason TV movies. He decided to pursue a film career and was replaced by William R. Moses for the last movie in the series. Moses played the role of Ken Malansky in the fourth and final movie, *Perry Mason: The Case of the Avenging Ace*.

This change of actors happened because Katt was offered a role in the film *The Right Stuff* (1983). He wanted to move away from television and focus on bigger projects. While he had a successful career in television in the 1970s and 1980s, with roles in *The Greatest American Hero* and *The Hardy Boys/Nancy Drew Mysteries*, Katt was looking to broaden his career horizons. He had a successful career in film as well, and the opportunity to be a part of *The Right Stuff* was a major break. The decision to leave the Perry Mason TV series was a business decision, driven by a desire to take advantage of a promising film opportunity.