With injuries to key players, a revamped NSW squad has been named.
The selectors had been expected to name a 25-man squad but instead chose 30 players ahead of the three-match series against Queensland which starts in Sydney on May 26.
Gidley, who has taken over the Knights' No.7 shirt following the season-ending injury to Australian captain Andrew Johns, is one of three halfbacks named along with favoured contenders Craig Gower and Brett Kimmorley.
Cross was a late call up to the City team for the injured Mark Gasnier.
NSW squad:- Trent Barrett (Dragons), Willie Mason (Bulldogs), Danny Buderus (Knights), Anthony Minichiello (Roosters), Joel Clinton (Panthers), Ryan O'Hara (Raiders), Matt Cooper (Dragons), Mark O'Meley (Bulldogs), Ryan Cross (Roosters), Andrew Ryan (Bulldogs), Michael De Vere (Broncos), Jason Ryles (Dragons), Craig Fitzgibbon (Roosters), Jason Stevens (Sharks), Mark Gasnier (Dragons), Timana Tahu (Knights), Kurt Gidley (Knights), Lance Thompson (Dragons), Matthew Gidley (Knights), Shaun Timmins (Dragons), Craig Gower (Panthers), Trent Waterhouse (Panthers), Scott Hill (Storm), Craig Wing (Roosters), Nathan Hindmarsh (Eels), Ben Hornby (Dragons), Ben Kennedy (Knights), Brett Kimmorley (Sharks), Brent Kite (Dragons), Luke Lewis (Panthers).