A resident of 55 Gleneldon Road she was married to Billy Caryll in 1920 and together they developed a popular sketch comedy act, starting in 1921. Inspired by a minor marital disagreement that they had had. Caryll took the role of a drunken husband and Mundy his domineering wife.
In 1935 the first pantomime at the Streatham Hill theatre took place and was very much a local affair. It starred Streatham residents Billy Caryll and Hilda Mundy along with Robert Hale (Drewsted Road) as Dame in “Dick Whittington” with Brixton’s Egbert Brothers, Patricia Burke making her debut as Alice, and Eugene’s Flying Underwater Ballet. The pantomime ran for three weeks, but was followed by a second pantomime, transferring from the Golders Green Hippodrome – “Aladdin” starring Polly Ward. (Nigel the Dame)