The Secret of Kells - Voice Cast

Voice Cast

• Brendan Gleeson as Abbot Cellach. A former illuminator himself, Abbot Cellach now uses his talents for the purposes of designing a wall to protect the Abbey of Kells from invasion. He is very concerned for everyone's safety, especially that of his nephew Brendan, to the point where he thinks of little else but the completion of his wall. Eventually, this leads to his downfall.
• Evan McGuire as Brendan, the protagonist. Twelve-year-old Brendan is bright, imaginative and curious, but leads a sheltered life due to his uncle forbidding him from venturing outside the walls of Kells. Brendan is very interested in the art of illumination, and spends much of his time in the scriptorium with some of the Brothers in the abbey. He is recruited as Aidan's assistant to help finish his great book. His uncle Abbot Cellach, an approaching Viking horde, a snake god and his own fears stand in the way of bringing the finished book to the people.
• Christen Mooney as Aisling, a fairy, related to the Tuatha De Danann, living in the woods outside of Kells. She is a protector of the forest, and doesn't like unwelcomed guests. At this point her age is uncertain, but she is likely to be hundreds of years old. Despite being terrified of Crom Cruach, the evil god that dwells in a cave deep within her forest, she becomes loyal to Brendan and does whatever she can to help him. She has many magical abilities, and often takes the form of a white wolf.
• Mick Lally as Brother Aidan; as the Vikings attacked the Scottish island of Iona, master illuminator Brother Aidan fled with his cat, Pangur Bán. In Kells, he acquires Brendan as an assistant.
• Michael McGrath as Adult Brendan.
• Liam Hourican as Brothers Tang and Leonardo, two illuminators from Asia and Italy respectively. The latter is implied to have perished in the invasion, whilst the former is present to witness the return of Brendan.
• Paul Tylack as Brother Assoua, an illuminator from Africa. He is implied to have died in the invasion.
• Paul Young as Brother Square, an illuminator from England. He is implied to have died in the invasion.