Shaun Johnson and Feleti Mateo, who played for the NRL All Stars, will also start, as will powerful propping duo Sam Rapira and 2013 Player of the Year Ben Matulino.
"We always planned to run with our younger players against the Titans,'' Elliott said. "It was a really productive trial for us, giving us a good chance to have a look at our depth.
"As our only trial close to home, this match in Hamilton is a step up. We're able to call on most of our senior players and we're all looking forward to playing at Waikato Stadium in front of our members and fans. It's great taking games to places around the country like Hamilton and we hope a huge crowd turns out for it.''
Apart from Friend, Jerome Ropati, who's working his way back from knee surgery, Russell Packer (bicep) and the club's other 2012 NRL grand final winner Todd Lowrie, who has returned home following the death of his grandfather. Sione Lousi is out for six months after rupturing the anterior cruciate ligament in his right knee against the Titans.
Warriors side to play Penrith at Waikato Stadium, Hamilton, on Saturday (4pm): Kevin Locke, Bill Tupou, Dane Nielsen, Konrad Hurrell, Manu Vatuvei, Thomas Leuluai, Shaun Johnson, Sam Rapira, Elijah Taylor, Ben Matulino, Ben Henry, Simon Mannering (c), Feleti Mateo. Interchange: Dominique Peyroux, Jacob Lillyman, Pita Godinet, Alehana Mara, Ngani Laumape, Carlos Tuimavave, Sam Lousi, Sebastine Ikahihifo, John Palavi, Glen Fisiiahi, Sio Siua Taukeiaho, Steve Rapira, Charlie Gubb.