1. George Clooney: Return of the Killer Tomatoes (1988)
Before launching into space with Gravity and well before his $1.9 billion box office numbers, George Clooney starred in the tomato-themed horror flick, Return of the Killer Tomatoes – this became Clooney’s first entrance to the big screen, and his first flop.
2. Matthew McConaughey: The Texas Chainsaw Massacre: The Next Generation (1994)
Fresh off Dazed and Confused and before he stripped down for Magic Mike -- Matthew McConaughey terrorized a young Renée Zellweger in the 1994 horror film, The Texas Chainsaw Massacre: The Next Generation.
3. Jennifer Aniston: Leprechaun (1993)
Just one year before she was cast as the beloved Rachel Green on Friends, Jennifer Aniston was fighting off an evil leprechaun inhabiting her basement in 1993's Leprechaun – yes, it's just as horrible as it sounds.
4. Tom Hanks: He Knows You're Alone (1980)
Two-time Oscar winner Tom Hanks made his Hollywood debut in the 1980 low-budget slasher film, He Knows You’re Alone.
5. Johnny Depp: A Nightmare on Elm Street (1984)
Johnny Depp was an unknown actor when he signed on to the 1984 classic A Nightmare on Elm Street. *Spoiler alert* Poor Johnny meets his demise when he’s sucked into his own mattress. Depp's breakout role as the lead in the television series 21 Jump Street would come just three years later.
Check out this video to see these a-listers in their horror movie roots.