Name actors who appeared in horror movies before they were famous

Naomi Watts is the main character in Children of the Corn IV: The Gathering.

Adam Scott has a decent size role in Hellraiser: Bloodline.

Matthew McConaughey and Renee Zelwegger are the lead actors in Texas Chainsaw Massacre: The Next Generation.

Viggo Mortensen stars as the main Chainsaw family member in Leatherface: The Texas Chainsaw Massacre III.