• Faith: Agnostic
• Career: Actress
• Birthday:  September 18, 1994

Madelaine Grobbelaar Petsch is an American actress best known for portraying Cheryl Blossom on "Riverdale" and Marissa in "F the Prom." She attended the Tacoma School of the Arts and moved to Los Angeles after graduating. She was tapped to act as Cheryl Blossom in "Riverdale" as early as 2015 even though filming did not begin until early 2017. In addition to her acting work, Petsch has released her own collection of sunglasses in collaboration with Prive Revaux.