Christa B. Allen is radiant in red as she arrives at the American Red Cross Annual Red Tie Affair held at the Fairmont Miramar Hotel on Saturday (April 21) in Santa Monica, Calif.

The 20-year-old Revenge actress wore a Donna Karan dress, vintage YSL earrings, a vintage Hermes belt, Christian Louboutin shoes, and carried a Judith Leiber clutch.

PHOTOS: Check out the latest pics of Christa B. Allen

Josh Duhamel, Jamie Lee Curtis, J.R. Martinez, Dr. Timothy Miller and Denis Leary were all honored at the annual event, which recognizes the humanitarian spirit of extraordinary individuals who have shown courage and unselfish character.

10+ pics inside…