| Character Profile | List of appearances |
Jem Costello is the daughter of Carl Costello, the half-sister of Riley, Seth and Jason Costello, and the ex-fiancé of Gilly Roach. Jem moved to Hollyoaks with Gilly in March 2010 after saving her from a shark in Thailand.
This section or article is a stub.
This section or article is a stub. You can help the Hollyoaks Wiki by expanding it.
