Amy Barlow is a fictional character from the British ITV soap opera Coronation Street, portrayed by Elle Mulvaney. She was born on screen during the episode broadcast on 9 February 2004. To date, the character has been portrayed by eight child actors; Holly Bowyer, Rebecca Pike, Louisa Morris, Rachel and Sarah Corker, Madison Hampson, Amber Chadwick and Elle Mulvaney, making her the most recast character in Coronation Street. Although Amy's surname has stayed Barlow, Chadwick was credited as Amy McDonald for three episodes from 2009 to 2010.

Steve McDonald is a fictional character from the British ITV soap opera Coronation Street, played by Simon Gregson. The character first appeared on-screen during the episode airing on 6 December 1989. He arrived as part of the McDonald family introduced by producer Mervyn Watson along with his twin brother Andy and parents Liz and Jim McDonald. For the first year on the Street, the character was credited by the actor's real surname Gregory, before changing to Gregson from early 1991 onwards. Steve is Coronation Street's most married character, having been married seven times to five women. In September 2015, Gregson announced a break due to personal reasons and Steve was off-screen from November 2015 to 22 April 2016.