Evan McGuire

Brendan (voice)

Christen Mooney

Aisling (voice)

Brendan Gleeson

Abbot Cellach (voice)

Mick Lally

Aidan (voice)

Liam Hourican

Brother Tang / Leonardo (voice)

Paul Tylak

Brother Assoua (voice)

Michael McGrath

Adult Brendan (voice)

Paul Young

Brother Square (voice)

Nora Twomey

Additional Voices and Walla (voice)

Alli McCann

Additional Voices and Walla (voice)

Clair Funchion

Additional Voices and Walla (voice)

Conor O'Halloran

Additional Voices and Walla (voice)

Gaelle Hersent

Additional Voices and Walla (voice)

Marie Thorhauge

Additional Voices and Walla (voice)

Sean Ono Lennon

Additional Voices and Walla (voice)