He was famous for his bulging eyes, malleable face and raspy voice and helped to form the Entertainments National Service Association (ENSA) during the Second World War.

Born in Notting Hill, London, Henson became interested in the theatre from an early age, writing and producing theatrical pieces while at school. He studied with “the Cairns–James School of Musical and Dramatic Art as a child, making his professional stage début at the age of 19. His first West End role was in Nicely, Thanks! (1912) and he later starred in several hit West End Edwardian musical comedies, including To-Night’s the Night (1915) and Yes, Uncle! (1917). After briefly serving with the Royal Flying Corps, he was released from active service by the British government to help run a concert party called “The Gaieties”, which provided entertainment for the troops during World War I. After the war, he returned to the West End, playing in Kissing Time (1919) and a series of musical comedies and farces throughout the 1920s and 1930s.

At the start of World War II, together with Basil Dean, he helped to form ENSA, with which he entertained British troops abroad. Henson’s postwar stage success continued in revues, musicals and plays, including a West End adaptation of The Diary of a Nobody in 1955. Henson’s film career was intermittent, and he made 14 films from 1916 to 1956. The most notable of these was Tons of Money in 1924, which introduced the popular Aldwych farces to British cinema audiences for the first time. Leslie Henson was born in Notting Hill, London, the eldest child and only son of Joseph Lincoln Henson, a tallow chandler, and his wife, Alice Mary (née Squire). He was educated at the Emanuel School (Wandsworth), and at Cliftonville College (Margate). Interested in the theatre from an early age, Henson wrote and produced theatrical pieces while at school. He worked briefly in the family business but soon studied with “the Cairns–James School of Musical and Dramatic Art”.

Henson began his professional stage career at age 19 in the provinces with The Tatlers’ concert party, soon appearing in London in the pantomime Sinbad at the Dalston Theatre at Christmas 1910. After concert appearances, he toured in The Quaker Girl in 1912 in the role of Jeremiah. His first West End role was later that year in Nicely, Thanks! at the Royal Strand Theatre. Actor Stanley Holloway dedicated a chapter in his 1967 autobiography to Henson, describing how Henson helped establish his career by signing him to perform in Nicely Thanks![4] He performed with The Scamps’ concerts and starred in the comic roles in hit West End Edwardian musical comedies such as To-Night’s the Night (1914 on Broadway and 1915 at the Gaiety Theatre, London), Theodore & Co (1916),[5] and Yes, Uncle! (1917). His malleable features, bulging eyes and raspy voice made him an audience favourite, especially in his own comic sketches. He also appeared in films occasionally, beginning with Wanted: A Widow (1916).

Henson signed up with the Royal Flying Corps but was removed from active service in 1918 to run a concert party group called “The Gaieties” in the 5th Army, to give shows for the troops. That autumn, he was stationed in Lille, which had been recently evacuated by the Germans, and was able to stage revues and a pantomime at the abandoned Opera House.

He returned to the West End in Kissing Time (1919), Sally (1921) and a string of musicals at the Winter Garden Theatre, including A Night Out (1920), The Cabaret Girl (1922) and The Beauty Prize (1923). In Tons of Money (1922), he starred as Aubrey Allington, which led to the long-running series of Aldwych Farces, which he co-produced with Tom Walls. In 1924, he played Aubrey Allington again when he and Walls made his most notable film, Tons of Money, which introduced the Aldwych farces to British cinema audiences for the first time.

In 1926, he starred in Kid Boots in London and then toured the English provinces in Betty Lee in 1926.In 1927, he appeared in a musical, Lady Luck at the Carlton Theatre, London, followed by Funny Face, 1928. In 1930, Henson and his business partner Firth Shephard co-leased the Novello Theatre and presented a series of farces, It’s a Boy! (1930, also starring Henson), It’s a Girl! (1930), Follow Through, Nice Goings On! (1933), Lucky Break and Aren’t Men Beasts! (1936).

In 1935, he and Shephard took over the Gaiety Theatre, London and produced four successful shows, Seeing Stars (1936), Swing Along (1937), Going Greek (1937) and Running Riot (1938). During the run of the last of these, the aged theatre was condemned and was required to be closed. Henson also returned to film work in the 1930s, appearing in A Warm Corner (1930), The Sport of Kings (1931), It’s a Boy (1933), The Girl from Maxim’s (1933) and Oh, Daddy! (1935). His later films were The Demi-Paradise (1943) and Home and Away (1956). In 1938, Leslie Henson was appointed president of the Royal Theatrical Fund.

At the outbreak of World War II, he returned to the UK from a tour of South Africa and, together with Basil Dean, formed the Entertainments National Service Association (ENSA), a government-sponsored organisation with which he entertained British troops in Europe, the Near East and the Far East. He was in London in 1940, however, for the revue Up and Doing and in 1942 for Fine and Dandy (at which the King and Queen and Princesses Elizabeth and Margaret were surprise guests), both at the Saville Theatre. In 1945, he starred in The Gaieties at the Winter Garden Theatre, and in a revival of 1066 and All That at the Palace Theatre, London. In 1946, he toured the provinces in The Sport of Kings.

In 1948 he starred in Bob’s Your Uncle. Later performances included “straight” roles, though with less success, such as Elwood P. Dowd in Harvey (1950), in which he toured, and as Samuel Pepys in a musical composed by Vivian Ellis And So to Bed by J. B. Fagan (1951). He also had a hit in the title role of the musical farce Bob’s Your Uncle (1948) by Austin Melford and later starred in Relations Are Best Apart at the Theatre Royal, Bath (1953), as Mr Pooter in a stage adaptation of The Diary of a Nobody (Duchess Theatre, 1955), and as Old Eccles in a musical version of Tom Robertson’s Caste (1955). Henson acted up until the time of his death.

Henson was married three times, in each case to an actress: Marjorie Kate Farewell “Madge” Saunders, daughter of Edward Henry Master Saunders and Ellen Lucie Margaret White (died 1967), whom he married at St. George’s Church, Hanover Square, Marylebone, London in 1919, Gladys Gunn, in 1926, Harriet “Billie” Dell, in 1944. His sons with his third wife were Joe, a farmer, and Nicky, an actor. Joe founded Cotswold Farm Park; his son, Adam Henson, runs the park and is a TV presenter. Nicky’s sons with ex-wife Una Stubbs are composers Christian and Joseph, and another son with wife Marguerite Porter is Keaton, an artist.

Henson died at his home in Harrow Weald, Middlesex, in 1957, aged 66.  His body was cremated at Golders Green Crematorium.