William Francis "Bill" Nighy (pronounced /ˈnaɪ/ ny) is a British actor and comedian.

He worked in theatre and television before his first cinema role in 1981, and made his name in television with The Men's Room in 1991, in which he played the womanizer Prof. Mark Carleton, whose extra-marital affairs kept him "vital". He became known around the world in 2003 as Billy Mack, the aging pop star in Love Actually, and in the same year played James Mortmain, the eccentric husband struggling to keep his family afloat in a decaying English castle, in I Capture the Castle. He is also known for his roles in the films Underworld, Shaun of the Dead, The Hitchhiker's Guide to the Galaxy, Pirates of the Caribbean, Hot Fuzz, Valkyrie, G-Force and provided voice talents in the films The Magic Roundabout, Flushed Away and Rango. He recently played Rufus Scrimgeour in Harry Potter and the Deathly Hallows. Bill Nighy is a Patron and supporter of the artistic collective The Factory Theatre Company alongside other actors such as Mark Rylance, Ewan McGregor and Richard Wilson. Other notable members include founder Alex Hassell, Catherine Bailey and Alan Morrissey.

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