McFadden has also chosen some other regulars from the club's 2014 New South Wales Cup side in wing Jarrod Tua, halfback Sam Cook, back rower Raymond Faitala-Mariner and prop Nathaniel Peteru along with former Junior Warriors Viliami Kaveinga and Stedman Lefau.
"After needing to consider the Nines as well, we can now concentrate solely on our preparation for the season proper," said McFadden.
"This first trial is really important in terms of looking at options, testing our depth and finding out what players have to offer whether it be for the NRL or New South Wales Cup sides.
"It's also a valuable opportunity for some of our younger players to have a taste of NRL trial football."
The squad for the Gold Coast trial will train tomorrow before leaving for Australia on Friday.
The Warriors have strong links with Toowoomba with Steve Price, Michael Witt and current hooker Nathan Friend all hailing from the area while former wing Justin Murphy lives in the region now.
The Warriors squad to travel to Toowoomba is: Matthew Allwood, James Bell, Sam Cook, Ray Faitala-Mariner, Charlie Gubb, Ata Hingano, Viliami Kaveinga, Stedman Lefau, Matiu Love-Henry, Marata Niukore, John Palavi, Willie Peace, Nathaniel Peteru, Api Pewhairangi, Dominque Peyroux, Upu Poching, Nathaniel Roache, Toafofoa Sipley, Saula Solomona, Zac Tippens, Jarrod Tua, Paul Ulberg, Albert Vete.