- 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
Fair-minded chief investigator from Tanuga IV. Initially believing William Riker murdered Dr. Nel Apgar in 2366, Krag was swayed by evidence presented aboard the U.S.S. Enterprise NCC-1701-D and exonerated Riker.