Directed by Robert Zemeckis, "Back to the Future Part II" featured Marty McFly (Michael J. Fox) who was on a mission to save Doctor Emmett Brown (Christopher Lloyd) from Biff Tannen (Thomas F. Wilson). One of the extras the 1989 sci-fi film went on to star in "Lord of the Rings."
Aside from Fox, Lloyd and Wilson, here are 10 others actors not many fans today know were in "Back to the Future Part II":
10. "Friday the 13th: The Final Chapter" actress Lisa Freeman
Freeman appeared in "Doogie Howser, M.D." and "Bringing Up Jack" after playing Babs in "Back to the Future Part II."
9. "Power Rangers" alum George "Buck" Flower
After "Back to the Future Part II," Flower appeared in "Power Rangers Lightspeed Rescue" and "Power Rangers Time Force."
8. "Paranormal Movie" actress Tracy Dali
After playing a Jacuzzi girl in "Back to the Future Part II," Dali appeared in several films including "Space Girls in Beverly Hills," "Tony Tag Makes it to Hollywood" and "Random Encounters."
7. "General Hospital" alum Irina Cashen
Years after playing a basketball kid in "Back to the Future Part II," Cashen appeared in "Play Nice" and "The Mouse."
6. "The King of Queens" alum Joe Flaherty
Flaherty played a Western Union man not only in "Back to the Future II" but also in "Family Guy" as a voice actor.
5. "That's So Raven" alum Wesley Mann
After playing CPR kid in "Back to the Future II," Mann appeared in several TV series, such as "Living Dolls," "Parker Lewis Can't Lose," "Adventures in Wonderland" and "Veronica Mars."
4. "Texas Rising" actor Crispin Glover
Set to star in "By the Rivers of Babylon" and "The Brits are Coming," Glover played George McFly in the archive footage in "Back to the Future Part II."
3. "King of the Nerds" actor Todd Blood
After playing a dance extra in "Back to the Future Part II," in which he was not credited, Blood appeared in several TV series including "Blood Relatives" and "Beverly Hills Pawn."
2. "American Sniper" director Clint Eastwood
Like Blood, Eastwood appeared in the archive footage featured "Back to the Future Part II." However, he was not credited like Blood.
Eastwood won his first Academy Award for Best Director in 1993 for his film "Unforgiven," which also won Best Picture. Among his other works as an actor and a director that earned Academy Award nominations are "Mystic River," ""Million Dollar Baby" and "Letters from Iwo Jima."
1. "The Last Witch Hunter" star Elijah Wood
Before starring in "The Lord of the Rings: The Fellowship of the Ring" and 'The Hobbit: An Unexpected Journey," Wood played a video game player in "Back to the Future Part II," which is his first film.
In a recent interview with 6ABC to promote "The Last Witch Hunter," Wood said he neither overthinks nor makes many plans in regards to the work that he does.
In another recent interview with People, Wood said it would be "pretty awesome" if he appears in "Fast & Furious 9" as the illegitimate son of Dominic Toretto (Vin Diesel).