Toto Mui Siu-wai (born April 17, 1966) is a Hong Kong actress and television host associated with Television Broadcasts Limited. Her notable roles include Sek Mei in Virtues of Harmony^[1] and Loose Head Zhi in Justice of Life.

This biography of a living person needs additional citations for verification. (October 2010)

Her older sister is TVB producer, Mui Siu-ching. In the mid-nineties, Mui had a long-term relationship with fellow TVB actor Savio Tsang. After 13 years together, the couple broke up in 1999.^[2]

• The Seasons (1987–1989)
• My Father's Son (1988)
• The Legend of Master Chan (1989)
• Looking Back In Anger (1989)
• The Final Combat (1989)
• Two of a Kind (1989)
• Everybody Loves Somebody (1989)
• Justice Of Life (1989)
• Song Bird (1989)
• Where I Belong (1990)
• No Risk, No Gain (1990)
• The Big Family (1991)
• The Commandments (1992)
• The Key Man (1992)
• Being Twins (1992)
• From Act to Act (1995)
• Good Match from Heaven (1995)
• Night Journey (1996)
• Working Women (1997)
• Show Time Blues (1997)
• A Road and a Will (1997)
• As Sure As Fate (1998)
• A Matter of Business (1999)
• Life for Life (1999)
• When Dreams Come True (2000)
• Colourful Life (2001)
• Virtues of Harmony (2001–2003)
• Virtues of Harmony II (2003–2005, Cutie left in 2004)
• Short of Love (2009)