James Karen enjoyed working on The Return of the Living Dead and even helped write the ending for his character who runs the medical warehouse next to the cemetery.
However, it was his roles in Poltergeist and Return of the Living Dead that he is best-known for today.
Karen had this to say about working on Return of the Living Dead.
Karen, who is probably best-known for his work in Poltergeist, Return of the Living Dead, Invaders from Mars, China Syndrome, and Wall Street, to name a few, has 204 acting credits on IMDb.