Hometown: Malibu, California

Relationship Status: Engaged to Heidi Montag

Quote: "I used to think marriage was the dumbest thing for guys who couldn't get laid."

Claim to Hills Fame: The Hills' resident bad boy, Spencer is the fiancée of Heidi Montag and maliciously tears his girl away from her former Hills' besties Lauren, Audrina, and Whitney. Having studied business at USC, Pratt also serves as the CEO of Innovator Management, whose clientele includes none other than Heidi herself.