Portrait of Cillian Sullivan

Cillian Sullivan

Born: Unknown birthdate.
Cillian Sullivan is ?
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Movies (Acting Roles)

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Poster of Blue Moon
Blue Moon
Cillian Sullivan was ? in Blue Moon as 'Stephen Sondheim'.
Movie Released: Fri, Oct 17 2025
Poster of A Song
A Song
Cillian Sullivan was ? in A Song as 'Young Boy'.
Movie Released: Sat, Jul 12 2025
Poster of The Things We Do
The Things We Do
Cillian Sullivan was ? in The Things We Do as 'Cillian'.
Movie Released: Sat, Jul 12 2025
Poster of Spilt Milk
Spilt Milk
Cillian Sullivan was ? in Spilt Milk as 'Bobby O'Brien'.
Movie Released: Tue, Dec 31 2024
Poster of Blue
Blue
Cillian Sullivan was ? in Blue as 'Mark'.
Movie Released: Mon, Nov 09 2020

TV Shows (Acting Roles)

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Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages