- Sam Hargrave is the brother of Daniel Hargrave and the brother-in-law of Kandis Hargrave.
- Sam Hargrave is currently in a relationship with Monique Ganderton.
- Sam Hargrave was a stunt double for Liev Schreiber and Taylor Kitsch in the 20th Century Fox production X-Men Origins: Wolverine.
- Sam Hargrave was a stunt double for Mark Strong in the DC Entertainment production Green Lantern.
- Sam Hargrave was a second unit director and stunt coordinator in the DC Extended Universe production Suicide Squad.
- Sam Hargrave portrayed James Gasciogne in the comic book adaptation Atomic Blonde. He was also a stunt coordinator in the film.