Complex sentence: He acted in countless television programs, including a notable role in "Seinfeld" as Jack Klompus; starred in "Law & Order"; and as Grandpa in a 1996 TV-movie revival of "The Munsters' Scary Little Christmas".
Split into simpler sentences: He acted in countless television programs, including a notable role in "Seinfeld" as Jack Klompus. He also starred in "Law & Order" and as Grandpa in a 1996 TV-movie revival of "The Munsters' Scary Little Christmas".