Fan Casting Robert Sheehan as Sean Cassidy in X-Men

user_340603 made this fan casting suggestion on June 27, 2025. What do you think? See below to cast your vote, or click here to see all fan casting suggestions for this role.

Robert Sheehan as Sean Cassidy in X-Men

Robert SheehanIreland

37 years old
Robert Sheehan (born 7 January 1988) is an Irish actor. Sheehan is known for playing Klaus Hargreeves on Netflix's original series The Umbrella Academy. He is the son of Joe and Maria Sheehan. His ...
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X-Men

X-Men

by Marvel
The X-Men. Either in the MCU or outside the MCU.
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Robert Sheehan is known for his roles in The Mortal Instruments: City of Bones, Geostorm, and Mortal Engines. He has been suggested by fans for 1,427 roles on myCast, including Pan in Percy Jackson & the Olympians. Similar actors include Bill Skarsgård, Timothée Chalamet, and Robert Pattinson. Robert Sheehan was suggested to play Sean Cassidy in X-Men by user_340603. Other actors sugggested to play this role include Domhnall Gleeson. X-Men has 70 roles, including Scott Summers, Shiro Yoshida, and Hank McCoy.

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