I just rewatched Enemy Mine about a month ago. Great actor, really nice person in the interviews I've seen with him as well.
Toy Soldiers was a diamond in the rough so far as Gossett Jr's performance - among a few of the early films to get permission to use AH64 and Blackhawks with cooperation of the military in filming.
Iron Eagle/2 - everyone who was my age when those came out must have fond memories of Louis Gossett Jr.. My first r/c trainer was christened "Iron Eagle". Yes, I crashed and totaled it.
Officer and a gentleman. Nothing needs to be said.