Caplan began his career when he was accepted into the prestigious Warner Brothers Writers Workshop in 1989, having his script chosen out of thousands of submissions.
Caplan’s early career saw him writing for such critically lauded comedies as Roseanne and Parker Lewis Can't Lose.
Moving on to Warner Brothers Television, Caplan served as writer/Executive Producer on the ABC hit comedies George Lopez and The Drew Carey Show.
In addition to comedy, Caplan helped to launch the record-setting TNT drama Rizzoli & Isles[3] by serving as Consulting Producer.
The Writers Guild of America West recognized Caplan for his writing contribution to Roseanne, which was feted as one of the 101 best written TV series.