Actor and screenwriter Don Keith Opper is the man who helped bring audiences the Critters series of sci-fi/horror/comedies in which small, cute, fuzzy, and voraciously hungry creatures from space wreak havoc on the Midwest. In addition to assisting with the screenplays, Opper also starred in all four series' entries.
Opper made his acting and writing debut in Android (1982). After 1991, Opper rarely appeared in films and when he did, it was in strictly supporting roles. ~ Sandra Brennan, All Movie Guide. 