His stage career began in 1919 with a part in The Lilac Domino, and he returned to the UK in 1920, slowly building popularity till the 1930s when he was well established in light comedy, and had significant film roles.[5]
In 1933, he toured the Continent "making pictures": for "For Love of You" he was in Venice and Hertfordshire's Elstree Studios; for "Going Gay", he travelled to Barcelona, Vienna and Berlin. In 1934, he appeared on stage in "Jack and Jill", playing Jack to Valerie Hay's Jill and Inga Andersen's ballet mistress.[6] In 1936, he and Frances Day starred in the film "Public Nuisance No. 1".[7] In 1937, he appeared in Liverpool in "Going Places" and later that year in London as the Widow Twankey at the Adelphi Theatre.[5]
He married Olive Raymond, and their daughter Maureen Riscoe was an actress and casting director.[8]
Riscoe continued to headline plays in the 1940s and early 1950s, among them "The Street Singer" and "Humpty Dumpty" in 1945, "Follow the Girls" in 1948, "One Wild Oat" in 1950, and "will Any Gentleman?" in 1951.[9] His last show was "And So to Bed", which played at Cardiff, Southsea, Hull, Manchester, Glasgow, Bristol and Chiswick in the spring of 1954.[10] He died of a heart attack on 6 August 1954 at his home in London.[5]