
John Kavanagh (born 1946, Dublin, Ireland) is an Irish character actor who was a member of the Abbey Theatre company for ten years (1967–1977) before going freelance. He has worked in over 20 films and numerous TV series since 1970. His film credits include Braveheart (1995), The Butcher Boy (1997), Dancing at Lughnasa (1998), Florence Foster Jenkins (2016), and The Last Duel (2021). On television he is best known for playing The Seer / Pope Leo IV in Vikings (2013–2020) and Vikings: Valhalla (2022–2024), and Cardinal Lorenzo Campeggio in The Tudors (2007–2008). He received a Drama Desk Award nomination (1989) for Juno and the Paycock. He is also a singer, having played the lead in the Irish stage production of Jacques Brel Is Alive and Well and Living in Paris in the 1970s. No other personal details are publicly confirmed.

as Tommy

as Mr. Westmoreland

as Sir Alfred Beit

as Le Gris' Priest

as Gatekeeper (voice)

as Windsor

as Narrator (voice)

as Dad

as Arturo Toscanini

as Junior

as Inspector Michaud

as Reverend Benham

as Fionan and Little Kevin's Dad

as Reverend Smith

as Harry

as Emmett Linscott

as Parmenion

as Stan

as Gerry the Barman

as Judge Shippen

as Sergeant Maloney

as Frank

as Haggerty

as Charlie Rice

as Father Carlin

as Dr. Boyd

as IRA Chief

as Cardinal

as Adolphus Grigson

as Craig

as Father Patrick Curtis

as Brian Mahon

as Canon Murtagh

as Sean Kerrigan

as Patrick Molloy

as Hartnett

as Seamus Reilly

as Father Dade

as Superintendent O'Kelly

as Tom Crosbie

as Johnny Lacy

as Manager

as Beggar

as Donkey

as Robert Foxley

as Kearney

as Skeffington

as James

as Mr. Devereux

as Bowser Egan

as Patrick Pearse

as Priest

as Jim

as Grandad