Theatre Credits include: Dessa Rose (Trafalgar Studios); Tick, Tick… Boom! (Menier Chocolate Factory); Candide (Menier Chocolate Factory); Lend Me a Tenor (Gielgud Theatre); Company (Southwark Playhouse); Avenue Q (Wyndhams Theatre); Chess (English National Opera); Man Of La Mancha (English National Opera). Cassidy was also an original London cast member of Wicked.
Cassidy is well known for playing Carole King in Beautiful, (Aldwych Theatre) to rave reviews from audiences and critics alike. Following a surprise visit, Carole King said of the performance: ‘Cassidy Janson literally brought me to tears this evening with her performance of Natural Woman. She was who I was, she felt what I felt. She was me!’
Television and Film credits include: The Hike; Tail’s End; Day Trip to London; Full Circle and Coma; Casualty (BBC).
Recording credits include: Songs from the Stage as a member of the group Leading Ladies, alongside Amber Riley and Beverley Knight. This debut album for the group was nominated for a Classical Brit Award. Cassidy is signed tov BMG records and released her solo debut album Cassidy.
Other Credits include: Guest singer with The Jive Aces, performing at Glastonbury, Ronnie Scott’s and on tours to New York City and Florida; Soloist at Magic of The Musicals (Royal Albert Hall); Leave A Light On and Tonight at the London Coliseum (Virtual concert series).