Jim Broadbent was born on May 24, 1949 in Lincolnshire to parents who were both amateur actors, he was educated at Leighton Park School, a Quaker school in Reading, and briefly attended art college before transferring to the London Academy of Music and Dramatic Art. He graduated in 1972. His early stage work included appearances as Patrick Barlow's assistant in the mock National Theatre of Brent. He won the Academy Award for Best Supporting Actor for Iris and the BAFTA Award for Best Actor in a Supporting Role for Moulin Rouge!, both in 2001, and the British Academy Television Award for Best Actor and Golden Globe Award for Best Actor – Miniseries or Television Film for his portrayal of penal reformer Lord Longford in the Channel 4 drama Longford in 2006. He portrayed Professor Horace Slughorn in the Harry Potter series. In 2017, Broadbent joined the cast of the HBO series Game of Thrones, playing the role of Archmaester Ebrose. Broadbent was born in Holton cum Beckering, in Lincolnshire, the second son of Doreen "Dee" Broadbent (née Findlay), a sculptor, and Roy Laverick Broadbent, an artist, sculptor, interior designer and furniture maker. Broadbent's parents were both amateur actors who co-founded the Holton Players acting troupe at Holton. The two have been described by the BBC as conscientious objectors who "worked the land" rather than participate in World War II. In Wickenby, a former Methodist Chapel was purchased in 1970 by Holton Players, who converted it into a 100-seat theatre, named Broadbent Theatre in memory of Roy Broadbent, who designed the conversion. Jim Broadbent had a twin sister who died at birth. Broadbent was educated at Leighton Park School, a Quaker school in Reading and briefly attended art college before transferring to the London Academy of Music and Dramatic Art. He graduated in 1972. His early stage work included appearances as Patrick Barlow's assistant in the mock National Theatre of Brent.

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