Career: Caine worked on stage and appeared in small roles on TV, often struggling to make ends meet. He was good friends with Terence Stamp during the early 1960s, before either became famous, and they often shared digs. Caine decided if he wasn't successful by the age of 30 he'd quit acting. Days before this milestone he landed the role in Zulu which made his name. The Harry Palmer spy movies, The Italian Job and Alfie secured his star status. Since then, he's made many films, many forgettable and, by his own admission, done for the money. Highlights include Get Carter, Sleuth (plus a remake), The Man Who Would Be King, Educating Rita, Little Voice, Mona Lisa, Batman Begins, The Prestige, The Dark Knight, Harry Brown and Interstellar. He won Oscars for Hannah and Her Sisters and The Cider House Rules. He claims he will retire from showbusiness when he's 90.

Career: Gambon became a member of Laurence Olivier's first Royal National Theatre company, and made his movie debut in 1965's Othello, alongside the star. His role in long-running TV show The Borderers led to an audition for James Bond. Parts in such forgettable productions as The Beast Must Die and Nothing But the Night came next. It was The Singing Detective in 1986 that finally made him a star. He's worked steadily ever since in the likes of Maigret, The Cook, the Thief, His Wife and Her Lover, Gosford Park, Doctor Who, Quartet, Sleepy Hollow and Fortitude. He took over playing Dumbledore in Harry Potter following the death of Richard Harris. He's won BAFTA TV awards for Perfect Strangers, Longitude, Wives and Daughters, and The Singing Detective.