Theatre •
Mary, After the Queen (1985, Whitbread Flowers Warehouse,
RSC) as The Young Mary (credited as Catherine Fleetwood) • ''A Midsummer Night's Dream'' (1986, Royal Shakespeare Theatre,
RSC) as Mustardseed (credited as Catherine Fleetwood) •
Love Is the Drug (1995,
Oxford Stage Company (OSC)) as Flamina •
Twelfth Night (1996, OSC) as
Viola •
Swaggers (1996,
Old Red Lion Theatre) as Nancy •
The Comic Mysteries (1997, UK tour) as Death/Gabriel •
Romeo and Juliet (1998, UK tour) as Juliet •
Arabian Nights (1998,
Young Vic) as Dinarzard/Parizade •
Ghosts (1999,
Theatre Royal Plymouth) as Regina •
Nativity (1999, Young Vic) as Balthazar •
The Two Noble Kinsmen (2000,
Shakespeare's Globe) as the gaoler's daughter •
The Tempest (2000, Shakespeare's Globe) as Iris •
Tender (2001,
Hampstead Theatre/
Birmingham Rep/ Theatre Royal Plymouth) as Tash •
Medea (2001, (Queen's Theatre) as Chorus •
Mariana Pineda (2002,
Gate Theatre) as
Mariana Pineda • ''
Love's Labour's Lost'' (2003,
National Theatre) as Rosaline • ''
A Midsummer Night's Dream'' (2003,
Bristol Old Vic) as Helena •
Othello (2003,
Theatre Royal Northampton) as Desdemona •
Hecuba (2004,
Donmar Warehouse) as
Polyxena •
Pericles (2006,
Royal Shakespeare Company (RSC)) as Thaisa • ''
The Winter's Tale'' (2006, RSC) as Hermione •
King Lear (2014, National Theatre) as Goneril •
National Theatre Live: King Lear (2014) as Goneril •
High Society (2015,
The Old Vic) as Tracy Lord •
Medea (2015, Almeida Theatre) as Medea •
Ugly Lies the Bone (2017, National Theatre) as Jess •
Absolute Hell (2018, National Theatre) as Christine •
101 Dalmatians (2022,
Regent's Park Open Air Theatre) as
Cruella de Vil •
A View from the Bridge (2024,
Ustinov Studio/
Theatre Royal Haymarket) as Beatrice •
My Master Builder (2025,
Wyndham's Theatre) as Elena Solness •
Into the Woods (2025-2027,
Bridge Theatre/
Noel Coward Theatre, West End) as The Witch
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