While her main career was the musical theatre, appearing both in London's West End and on Broadway, she also played Ammonia in the BBC situation comedy Up Pompeii!.
Her singing gained notice in the original London Coliseum production of Kiss Me, Kate when the star of the show Patricia Morison was ill. Larner was her understudy; she had previously been a member of the chorus.
She then toured as Kate/Lilli in Kiss Me, Kate with Christopher Hewett as Fred/Petruchio, and played leading roles in West End productions of Wish You Were Here, Kismet, and Camelot with Laurence Harvey as Arthur.
{To hear her voice from this recording, it is now partly available – The New Moon tracks at least – as a "filler" in the recent re-release of the June Bronhill/Edmund Hockridge version of The Desert Song – EMI CFP 3359872}.
She also appeared in an Off-Off-Broadway cabaret revue, Don't Cry, Baby, It's Only a Movie, with lyrics by Fran Landesman and music by Jason McAuliffe.