In 2005 Janson appeared in Tick, Tick... Boom! at the Menier Chocolate Factory. She played Susan, alongside Neil Patrick Harris as Jonathan and Tee Jaye Susan as Michael.[1]
In 2006 she joined the original West End cast of Wicked as part of the ensemble, later moving to be standby for the role of Elphaba.[2] Following this, she joined the final West End cast of Avenue Q as Kate Monster/Lucy the Slut.[2]
In 2011 she originated the role of Maggie Saunders in the musical version of Lend me a Tenor. She appears on the original cast recording.[3]
In April 2019 she appeared in Man of La Mancha at the London Colosseum, sharing the roles of Aldonza and Dulcinea with Danielle de Niese.[13] The production played a limited run to 8 June 2019. Following this, she has been cast in the new musical & Juliet, which is currently showing on the West End at the Shaftesbury Theatre. She stars as Anne Hathaway, William Shakespeare's love, Shakespeare being portrayed by Oliver Tompsett.[14] Janson won an Olivier Award in the category of Best Supporting Actress in a Musical for her performance of Anne Hathaway.
Leading Ladies
In 2017 Janson teamed up with Beverley Knight and Amber Riley to form a musical theatre supergroup, known collectively as the "Leading Ladies". Their debut album, Songs from the Stage, was released on 17 November 2017 and features covers songs from Cats, Beautiful and Rent among others.[15]
Debut album
Cassidy Janson announced via her Twitter in late 2018 that she had signed a record deal with BMG.[16] In April 2019 Janson announced that her debut album Cassidy would be released on 14 June. It features 14 new songs, 12 co-written by Janson herself, and new song written for her by legend and friend Carole King.[17]
Personal life
Cassidy Janson often appears on stage with The Jive Aces as a guest performer.[18]