Her mother is writer Kay Mellor.
Gaynor appeared in training videos for both Leeds Polytechnic and Halifax Building Society.
Gaynor had roles on the stage as Sharon Christmas in The Electric Christmas Show, Joyce in Mother Of Mine, Carol in Sold, Joanna in In All Innocence, Juliet in Romeo and Juliet, Mary Morgan in Accident of Birth and The Office Party.
Gaynor rapidly became one of the most popular characters of the show Peak Practice, but stunned Granada in 1999 by announcing that she wanted to move onto other roles and would not be renewing her contract.
She left school after taking her A-levels and set up her own theatre company in order to get her Equity card.
Gaynor changed her surname to Faye after a school friend and soon gained her big break as Crystal in the BBC comedy The Sharp End.
Gaynor lives in Headingley, Leeds with her boyfriend, restaurateur Aaron Cowlrick, whom she met when she was 16.
She is director of Rollem Productions (Mellor spelt backwards) with her sister, father and mother.
She is a fan of alternative therapies, co-owning a business selling alternative remedies.
As a child, Gaynor Faye wanted to be a vet.
Yvonne Francas is her sister.
Since July 2006, Gaynor has starred in, and co-written The Chase with her mother for BBC 1.
In Dancing on Ice, Gaynor's skating partner was Daniel Whiston, who has won the UK Gold Medal, and they won the competition after a skate-off with Stefan Booth and his partner Kristina Cousins.
Gaynor took part in a mega coffee drinking session for charity, saying: "I was invited to come along because I am a big patron of Cancer Relief and big admirer of Macmillan nurses and I also support Fairtrade products ...So it seemed a perfect situation for me to enjoy a cup of coffee."
Gaynor is a Buddhist.
Gaynor played Judy Mallet in Coronation Street in the late 90s.
Gaynor co-wrote with her mother and starred in the comedy series, Fat Friends.
Her first role after Corrie was in BBC One's Playing the Field written and produced by her mother Kay Mellor.
She gave birth to her first child, son Oliver Mellor Pickering, on April 5, 2001, six weeks prematurely. The father of her baby is her boyfriend, Mark Pickering, with whom she's been since Christmas 1999.
Gaynor is the daughter of TV scriptwriter Kay Mellor.
Gaynor: I wanted to be a vet when I was little. I was always rescuing animals our cat had attacked. But strangely, during filming I developed an allergic reaction to dogs.