He played Louis Mazzini in the Ealing Studios film Kind Hearts and Coronets (1949) and the omnicompetent valet Jeeves in 1960s television adaptations of P. G. Wodehouse's stories.

He had distant Welsh family connections, and was the son of Brigadier-General Thomas Rose Caradoc Price (1875–1949), CMG, DSO[1] (who was a great-grandson of Sir Rose Price, 1st Baronet, and, through his mother, a descendant of the Baillie baronets[broken anchor] of Polkemmet, near Whitburn, West Lothian),[2][3] and his wife Dorothy, née Verey, daughter of Sir Henry Verey,[3] Official referee of the Supreme Court of Judicature.

He served in the Royal Artillery from March 1940 to June 1942 during the Second World War, but returned to acting after being invalided out,[3] appearing with Noël Coward in This Happy Breed and Present Laughter and later as Charles Condomine in Blithe Spirit, which he later named in Who's Who in the Theatre as one of his two favourite parts along with the title role in André Obey's Noah.

British National borrowed him for The Echo Murders (1946), a Sexton Blake film; he was then fourth-billed as the villain in a Gainsborough melodrama, Caravan (1946) with Stewart Granger and Jean Kent, playing the type of villainous part that had made James Mason a star (and that Mason was no longer interested in playing).

He made two films for Bernard Knowles, supporting Margaret Lockwood in The White Unicorn and a comedy, Easy Money (both 1948).

He was given the title role in The Bad Lord Byron (1949); this was a huge flop at the box-office, and helped kill off the Gainsborough melodrama.

His role was to represent the eyes of listeners as the Piddingtons performed their telepathy act in the Piccadilly studios, and in the Tower of London.

[9] He was loaned to Associated British Picture Corporation (ABPC) to make two films: the musical The Dancing Years (1950), a sizeable hit; and the thriller Murder Without Crime (1950), was less successful.

He played the lead in Lady Godiva Rides Again (1951), and after a cameo in The Magic Box (1951) he had top billing in a comedy, Song of Paris (1952).

(1955), Private's Progress (1956), Charley Moon (1956) with Max Bygraves, Port Afrique (1956), A Touch of the Sun (1956), Fortune Is a Woman (1957), The Naked Truth (1957), Danger Within (1959), I'm All Right Jack (1959), and School for Scoundrels (1960).

[3] Working with Ian Carmichael as Bertie Wooster, this now almost completely lost series[11] was based on the novels and short stories of P. G.

One of his last film appearances was a star-studded version of Alice in Wonderland (1972) with Ralph Richardson, Robert Helpmann, Peter Sellers and Dudley Moore, among others.

In the book British Film Character Actors (1982), Terence Pettigrew wrote that Price's most successful screen characterisations were "refined, self-centred, caddish and contemptuous of a world inhabited by inferiors.