Jack Kosslyn (December 28, 1920-June 24, 2005) was an American actor. He appeared in several movies and television shows, and worked with Clint Eastwood on a number of occasions.
- The Amazing Colossal man (Experiment #309) as a Lieutenant
- Earth vs the Spider (Experiment #313) as Mr. Fraser
- War of the Colossal Beast (Experiment #319) as the Newscaster
- The Magic Sword (Experiment #411) as the Ogre
- Attack of the Puppet People (RiffTrax) as Sgt. Paterson