Morgan was previously on Big Brother.
Ashley was on Ex on the Beach UK.
Viewers will remember Chase from this time on The Bachelorette.
Stephen comes from Geordie Shore.
Alan is a TV personality from Telemundo.
Julia comes from the world of Big Brother.
Dee comes to The Challenge from Geordie Shore.
Zahida is a newcomer from Ex on the Beach.
Josh comes to the MTV reality series from Big Brother.
Shaleen Sutherland comes to The Challenge from the Canadian version of The Bachelor.