Keith Howell Charles Allen (born 2 September 1953) is a Welsh actor, pantomime star and television presenter. He is the father of singer Lily Allen and actor Alfie Allen, and brother of actor and director Kevin Allen.

Early life
Allen was born on 2 September 1953 in Llanelli, Carmarthenshire, Wales, the second of three children of Edward Charles Owen, a Royal Navy petty officer submariner. His younger brother is actor Kevin Allen. He spent his early years near Swansea and in Malta, and most of his childhood in Gosport, Hampshire, while his father served in Portsmouth. At the age of 11, when his father was posted to Singapore, he was sent to board at Brentwood School, a public school in Essex. He was expelled from the school at the age of 13. At 15 he was sent to a borstal after repeatedly being caught stealing, later saying that he "had a great time" there.