- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Otrin was a member of the ravaged Delta Quadrant race, who suffered radiation sickness due to an antimatter containment failure blamed on Friendship One, a probe from Earth. Otrin was treated by the Doctor and blamed the Voyager crew for his people's plight. He eventually became the leader of his people, taking over from Verin.