Joanne King (born 20 April 1983) is an Irish actress. She played Cynthia 'Cyd' Pyke on the BBC One hospital drama Casualty and Jane Boleyn, Viscountess Rochford in the Showtime 2007 - 2010 series The Tudors.

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King was born in Dublin, the second of four children. Her father Ronan is an accountant and mother Edel is a volunteer teacher. She attended St. Brigid's Girls School in Cabinteely and St Joseph of Cluny Killiney. She trained at the Gaiety School of Acting, Dublin.

She moved to London from Ireland and was working as a BBC tour guide when she auditioned for a role on Casualty. She is played Cyd (Cynthia Pyke) on Casualty.^[1]

She later played Anne Boleyn's sister-in-law, Lady Jane Rochford, in Showtime's The Tudors.^[2] Her character first appeared in the middle of Season Two in a small supporting role; this was expanded for the fourth and final season, which portrayed the downfall and execution of Lady Jane.

She opened a cafe in Bristol, which enables all profits to go to the Tenovus Cancer Care charity, which funds cancer care and research.^[3]

• Striking Out (TV Series) (2017) as Ada O'Melia
• Angel of Decay (2016) as Sande
• Massive (2008) as Nancy
• The Tudors (2008–2010) (seasons 2-4) as Jane Boleyn, Viscountess Rochford
• Trial & Retribution (Kill the King -Part 2 : 2008) -
• Shameless (2008) as Brandi
• The Omid Djalili Show (2007)
• Casualty (2006–2007) as Cynthia 'Cyd' Pyke
• The Exile Files (2006) as Lucy Dillon
• Boy Eats Girl (2005) as a zombie

• A Midsummer Night's Dream - 2005 - Hermia - The Pavilion Theatre
• Hamlet - 2004 - Ophelia - The Cork Opera House
• Carolling Corlorans - Various characters- The Ark/Mermaid Theatre
• The Playboy Of The Western World - Honour Blake - Cork Opera Hs
• G.S.A. Showcase - Various characters - The Gate
• What The Dead Want - Common Girl - The Project
• The Abduction Of Persephone - Sharon - G.S.A.

• Appeared in the Brian McFadden music video Irish Son as a businesswoman.
• Movement (Adrianne Browne), Stage Combat (Paul Burke), Mime (Sharon O'Doherty), Basic Irish & French, Basic Violin.
• Radio: Romeo & Juliet, "Juliet", Arklight Theatre Company
• Dance: Modern Dance, Tap, Ballet (Diane Richardson) Accents: Regional Irish, English, RP, Various American
• Singing: Alto