2. Michael J. Fox as Dr. Kevin Casey
Appearances: 2 episodes in season 3 (episode 12,13) | Known from: Back to the Future (1985), Teen Wolf (1985), Spin City (1996-2001)
Dr. Kevin Casey comes to Sacred Heart as a true star doctor. He is both a surgeon and an internist and seems to be a role model for everyone except Dr. Cox, who seems to hate him. They both know each other from their time as residents.
Kevin Casey is not just a positive role model; he shows the main characters what they can never achieve, but also how small their problems seem. Dr. Casey is a great doctor but struggles with his own problems.
The role of Kevin Casey is one of Michael J. Fox’s best despite the short duration. He excels in both the comedic and dramatic scenes and fits perfectly into the series. Why he is such a special guest is elaborated on in this article: A doctor is only in 2 episodes of Scrubs but still dominates season 3
