Shelley Catherine "Shell" Hennig (born January 2, 1987) is an American actress, model, and beauty pageant titleholder. She won the 2004 Miss Teen USA competition. On television, Hennig is known as Stephanie Johnson on the soap opera Days of Our Lives (2007–2011, 2017), Diana Meade on The Secret Circle (2011–2012), Malia Tate on Teen Wolf (2014–2017), and Ava Winters in the Netflix action comedy Obliterated (2023). Her film appearances include Ouija (2014), Unfriended (2014), and When We First Met (2018).

Filmography

• 2026Best Pancakes in the County — Dolly
• 2025Fluxx
• 2025Hunting Season — January
• 2024Cult Killer — Jamie Douglas
• Obliterated — Ava Winters
• 2023Teen Wolf: The Movie — Malia Tate
• 2023The List — Sam
• 2022Gatlopp: Hell of a Game — Alice
• The Woman in the House Across the Street from the Girl in the Window — Lisa
• Mythic Quest — A.E. Goldsmith, Ginny
• Dollface — Ramona
• Liberty Crossing — Carly Ambrose
• 2018The After Party — Alicia Levine
• 2018When We First Met — Carrie Grey
• 2017Roman J. Israel, Esq. — Olivia Reed
• 2016Summer of 8 — Lily
• 2015About Scout — Melinda
• Friends with Better Lives — Molly
• 2014Ouija — Debbie Galardi
• 2014Unfriended — Blaire Lilly
• Zach Stone Is Gonna Be Famous — Christy Ackerman
• Teen Wolf — Malia Tate
• The Secret Circle — Diana Meade
• Blue Bloods — Maya
• Justified — Jackie Nevada
• Miss Teen USA — Miss Louisiana Teen USA 2004

Appearances as themselves (1)

• Wolf Watch — Self