For her role in the British Channel 4 series Hollyoaks, which was Gemma Merna's first major TV role, she won Best Comedy Performance in the 2007 The British Soap Awards.
In the same year's National Television Awards, she was nominated for Best Female Soap Actress.
Merna was born in Cleethorpes, but when she was one year old she moved to Didsbury from where both her parents came. She was engaged to long-term boyfriend Ian Minton.Merna and Minton married at a ceremony on 27 May 2012; present were fellow Hollyoaks cast members.
Merna used to share a house in Liverpool with on-screen sister Jennifer Metcalfe, who plays Mercedes McQueen.She lived in Manchester, going to St.Georges RC High School.
On Sky Sports, Merna revealed that she is a supporter of both Manchester United F.C. and Liverpool F.C.
In a 2009 interview with Closer magazine she said that having a breast enlargement at the age of twenty-one was one of the best things she ever did and that it gave her so much confidence.
On 14 October 2009 Merna presented awards, with Alan Hinkes, for the Duke of Edinburgh's Award Scheme, at the Kirkby Suite, Kirkby, Knowsley.
Hollyoaks, Carmel Valentine (2006–present)
Big Brother: Celebrity Hijack (2008), herself as hijacker
Hole in the Wall Blue Team Series 2 Episode 2
Sing If You Can (2011), Red Team Series 1 Episode 2
Celebrity Juice (2011), 28 April 2011, Series 5 Episode 12
Who Wants to be a Millionaire (2013) played alongside Jennifer Metcalfe.