- 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
An actor particularly well-respected for his portrayal of Shakespeare's Henry V. Data experimented with this role and planned to study Kullnark's performance along with those of Olivier, Branagh and Shapiro.