Abby Ryder Fortson (born March 14, 2008) is an American actress. She played Ella Novak in Transparent, Harper Weil in The Whispers, Sophie Pierson in Togetherness, Cassie Lang in Ant-Man (2015) and Ant-Man and the Wasp (2018), and Margaret Simon in Are You There God? It's Me, Margaret. (2023). She is the daughter of actress Christie Lynn Smith and her husband, John Fortson. On January 6, 2024, Fortson was honored with the Star on the Rise Award at the 2024 Astra Awards of the Hollywood Creative Alliance.

Filmography

• 2026Carousel — Maya
• 2025Griffin in Summer — Kara
• The Pitt — Kristi Wheeler
• 2023Are You There God? It's Me, Margaret. — Margaret Simon
• Marvel Studios Assembled — Cassie Lang (archive footage)
• Marvel Studios Legends — Cassie Lang (archive footage) (uncredited)
• Tales from the Loop — Young Girl, Young Loretta
• Trolls: TrollsTopia — Priscilla (voice)
• 2019A Dog's Journey — Young CJ
• 2018Ant-Man and the Wasp — Cassie
• 2018Forever My Girl — Billy
• DuckTales — Little Girl Audience Member (voice), Kid (voice), Little Girl (voice)
• Room 104 — Elle
• 2016Albert — Saplings
• 2016Rated — Hannah
• 2015Ant-Man — Cassie Lang
• The Whispers — Harper Weil
• Togetherness — Sophie Pierson
• Transparent — Ella Novak
• The Mindy Project — Clementine
• Rated — Hannah Mitchell
• Scooby-Doo: Origins — Velma Dinkley

Appearances as themselves (2)

• The Kelly Clarkson Show — Self
• LIVE with Kelly and Mark — Self - Guest