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Fan Casting Abigail O'Regan as Theresa Cassidy in The Uncanny X-Men

hopesexodus made this fan casting suggestion on March 28, 2025. What do you think? See below to cast your vote, or click here to see all fan casting suggestions for this role.

Abigail O'Regan as Theresa Cassidy in The Uncanny X-Men

Abigail O'ReganIreland

26 years old
Abigail O'Regan is a newcoming Irish actress, model, theatre performer and dancer/ballerina. She portrays Mia Banks in the Hulu original series, Spellbound (2023-). She studied Musical Theatre a...
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Theresa Cassidy in The Uncanny X-Men
Fan Casting

Abigail O'Regan

as

Theresa Cassidy (Siryn)

in

The Uncanny X-Men
The Uncanny X-Men

The Uncanny X-Men

Hated And Feared
by Chris Claremont
I’ve read every single x-men comic in existence: here’s my take on an x-men movie cast. Not any particular story, just who would appear as who in all movies in an x-men series
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Fan casting suggestion made by:

hopesexodus

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Abigail O'Regan has been suggested by fans for 22 roles on myCast, including Lauren in A Good Girl's Guide to Murder. Similar actors include Amybeth McNulty, Hannah Dodd, and Caitlin Blackwood. Abigail O'Regan was suggested to play Theresa Cassidy in The Uncanny X-Men by hopesexodus. Other actors sugggested to play this role include Caitlin Blackwood. The Uncanny X-Men has 70 roles, including Dr. Cecilia Reyes, Kitty Pryde, and Elizabeth “Betsy” Braddock.

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