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John Kavanagh
Known for: ActingJohn 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.
Filmography 22
Alexander
as Parmenion 
The Black Dahlia
as Emmett Linscott 
In Secret
as Inspector Michaud 
Florence Foster Jenkins
as Arturo Toscanini 
Supervized
as Windsor 
The Stag
as Fionan and Little Kevin's Dad 
Baltimore
as Sir Alfred Beit 
The Invisible Woman
as Reverend Benham 
Father & Son
as John O'Connor 
Riverdance: The Animated Adventure
as Gatekeeper (voice) 
Circle of Friends
as Brian Mahon 
Dancing at Lughnasa
as Father Carlin 
The Butcher Boy
as Dr. Boyd 
Some Mother's Son
as Cardinal 
Into the West
as Hartnett 
Widows' Peak
as Canon Murtagh 
Pete's Meteor
as Sergeant Maloney 
The Tiger's Tail
as Harry 
Benedict Arnold: A Question of Honor
as Judge Shippen 
Cal
as Skeffington 
The Halo Effect
as Stan