|Character Profile||List of appearances|
Jason Costello (previously Jasmine) is the son of Carl and Heidi Costello, the younger brother of Riley, Jem and Seth Costello and the grandson of serial killer Silas Blissett. Jason arrived with his family in July 2010 as a girl named Jasmine this led to his biggest storyline while on the show as the character went through a sex change and also a relationship with Bart McQueen. He departed in December 2011 along with his father Carl when they moved to Los Angeles.
- In September 2011, it was announced that Atkin had decided to quit the programme in order to pursue other projects, Atkins departs the series on 1st December 2011.
- Jason's transgender storyline was nominated for the Radio Times Creative Diversity Network Soap Award.