Philip Haywood Glenister (born 10 February 1963) is an English actor, best known for his role as DCI Gene Hunt on the British television series Life on Mars and its sequel Ashes to Ashes.
Glenister was born in Harrow and grew up in Hatch End. He is the son of director John Glenister and the brother of fellow actor Robert Glenister. He attended Blackwell Secondary School (now Hatch End High School), and with the encouragement of his then-sister-in-law Amanda Redman to pursue acting and attend drama school, the Central School of Speech and Drama.
In the early 1990s, Glenister appeared in various TV series including Minder, The Ruth Rendell Mysteries, Heartbeat, The Chief, Dressing for Breakfast and Silent Witness. In 1997, he guest starred in Sharpe's Justice as Richard Sharpe's half-brother Matt Truman. He played William Dobbin in the 1998 mini-series Vanity Fair.
From 1998 to 1999, Glenister co-starred as a mini-cab driver who aspires to be a rock star in the series Roger Roger. He also played factory boss Mack Mackintosh in the first three series of Clocking Off from 2000–02. In 2001, he appeared in two of the Hornblower TV films as Horatio's antagonist Gunner Hobbs.