Rising Star Matilda Firth Joins Avengers: Doomsday in Undisclosed Role

A young actor gaining recognition, Matilda Firth, is reportedly part of the Avengers: Doomsday cast, though her exact role remains undisclosed. Her resume, initially listing her character as ‘Little Girl,’ was recently updated after being removed by her agency, The Artists Partnership.

Who has seemingly joined the cast of Avengers: Doomsday?

According to observations by Prime Top News on X, Matilda Firth has joined the cast of Avengers: Doomsday. While concrete details about her character are limited, speculation from the insider source Earth 616 suggests she might portray Valeria Richards, known in the comics as Dr. Doom’s goddaughter. However, this theory faces challenges due to potential timeline inconsistencies with the events depicted in Doomsday and Fantastic Four: First Steps, leaving the matter unconfirmed until Marvel’s official statement.

Firth’s acting credits include appearances in television series such as Nine Perfect Strangers, Cama, Mr. Bates vs Post Office, Hullraisers, Time, and The Power. Additional roles have been in Tinsel Town, I Before E, Starve Acre, Christmas Carole, and The Duke.

Avengers: Doomsday cast and release date

The film’s cast features Robert Downey Jr. returning as the antagonist Victor von Doom, with Chris Evans reprising his role as Steve Rogers/Captain America and Chris Hemsworth as Thor. The ensemble also includes Letitia Wright, Tenoch Huerta Mejía, Ebon Moss-Bachrach, Vanessa Kirby, Anthony Mackie, Sebastian Stan, Paul Rudd, Wyatt Russell, Simu Liu, Florence Pugh, Kelsey Grammer, Lewis Pullman, Danny Ramirez, Joseph Quinn, David Harbour, Hannah John-Kamen, Tom Hiddleston, Alan Cumming, Rebecca Romijn, Channing Tatum, Patrick Stewart, Ian McKellen, James Marsden, and Pedro Pascal.

Avengers: Doomsday is scheduled for theatrical release on December 18, 2026.