Aidan Morgan, a member of the King's College side Ah Kiong's Hastings Boys' High School side beat 27-14 in last year's National Top Four final, will start at first five-eighth, Manawatu's Drew Wild will start at fullback and Scots College product Ethan Webster-Nonu, a son of former All Black Ma'a Nonu, will start on the left wing.
Openside flanker Josh Southall will captain the hosts.
Southall, Thompson and blindside flanker Taine Plumtree, a son of former Magpies forward and former Canes coach John Plumtree, spent the last 10 weeks training with the Hurricanes.
Hurricanes recruitment and development manager, Darren Larsen, said the team has a good spread of talent.
"We have some of New Zealand's finest young rugby players in this team. It'll be a fantastic sight for footy fans looking for something to do on Saturday."
The Hurricanes under-20 team for Saturday's 2.05pm curtainraser to the Hurricanes match against the Sunwolves is:
Drew Wild, Roderick Solo, Josiah Maraku, Danny Toala, Ethan Webster-Nonu, Aidan Morgan, Isaac Bracewell, Iona Apineru, Josh Southall (captain), Taine Plumtree, Liam Mitchell, Hugo Plummer, Luke Chisholm, Tyrone Thompson, Niko Manaena. Substitutes: Ben Strang, Joseph Gavigan, Flyn Yates, Ofa Tauatevalu, Sam Smith, Lattrell Ah Kiong, Stu Cruden, Kienan Higgins.