Grant Williams (1931-1985) was an American actor. He gained acclaim playing the title role in the film The Incredible Shrinking Man.
- The Leech Woman (Experiment #802) as Neil Foster
- The Oozing Skull (Cinematic Titanic) as Bob
- The Doomsday Machine (Cinematic Titanic) as Major Kurt Mason
- Mr. Williams appears in the first 2 films that became Cinematic Titanic productions. This was referred to during the introductory segment of CT's The Doomsday Machine. Actor Steve Franken holds a similar distinction.