Alex Jennings (born 10 May 1957) is an English actor whose roles have included Charles, Prince of Wales in The Queen (2006).
Jennings was born to Michael Thomas and Peggy Patricia Mahoney in Essex. He attended Abbs Cross Technical High School in Hornchurch and then studied English and Theatre studies at the University of Warwick, graduating in 1978. He trained as an actor for two years at Bristol Old Vic Theatre School.
Jennings began his career in regional repertory theatre, playing a range of roles including Robespierre in The Scarlet Pimpernel. For his performance as Gloumov in Too Clever by Half at the Old Vic, he won the Olivier Award for Best Comedy Performance in 1988. He was nominated in the same category the following year for portraying Dorante in The Liar. He has performed for the Royal National Theatre in a number of plays, including Leontes in The Winter's Tale and the title role in Albert Speer.
His Royal Shakespeare Company roles include the title role in Peer Gynt (for which he won an Olivier Award 1995/6 for Best Actor), the title role in Richard II (opposite Anton Lesser as Henry Bolingbroke), Theseus/Oberon in A Midsummer Night's Dream (UK, American tour and Broadway), Angelo in Measure for Measure, and the title role in Hamlet.