And another five with Rams connections are also in the 23, along with two travelling reserves.
Berkshire are after a Jason Leonard County Championship South West Divisional final victory to leave them two games from Twickenham.
Two-time BB&O title-winning captain Aaron Preston leads the charge, joined in the back row by ex-Oratory School ace Charlie Burton.
Further forward in the scrum, Ollie Ireland starts at loose-head prop.
Livewire Loughborough University scrum-half Louis Roumignac gets the nod with Theo Pett-Ridge going from the off at outside centre.
Captain Olly Marsh has been a regular in the Development XV and Under 23s and takes the No. 8 jersey.
His fellow Reading University pal Max Hughes is in the second row having also made an impact for those two sides.
Two more Uni fliers, Ethan Bassett and Llyr Jones, offer serious pace in the back three.
And Philippines Asia-Cup winner Lawrence Beboso starts at tight-head, the Swansea University man having represented the Under 23s against the Lambs last month.
Test of character awaits at Redruth
Ready to inject impetus from the bench are two more title-winning former Colts, Jake Scott in the front row and Matt Cox at fly-half.
RURFC talents Sam Kaminaris and scrum-half Ollie Morgan, take the Rams contingent to a dozen at Redruth RFC (2pm ko).
A hostile environment awaits with Hellfire Corner renowned for its welcome, but we wish the side good luck.
Former Juniors Paddy Brown and Joe Barrett are the travelling reserves in case of any last-minute glitches as Berkshire look to move within a game of an HQ National decider.
