The duo have been regulars for the Cavaliers and Academy sides this season and Dickson scored two tries in Wednesday's victory over the Army.
Team Manager John Porter-Griffiths is looking forward to getting the side together ahead of what promises to be an exciting time.
He said: "The coaches have been working hard to assemble the squad and we can't wait to get the guys together.
"Bedford Academy will provide a stern test, but that's exactly what we want before we head over to Dublin at the end of the month."
England Under 18 Clubs & Schools squad
Thomas Duggan (Blackheath RFC, Dartford Grammar School)
Finlay Hillicks (Harlequins, College of Richard Collyer)
Ollie Hodgson (Middlesbrough, Gosforth Academy, Newcastle Falcons)
Dan Hyam (Mellish RFC, Arnold Hill Academy, Nottingham RFC)
Charlie Kingham (Saracens, Felsted School)
Simon Linsell (Gloucester Rugby, Marling School)
Harry McCartney (London Wasps AASE, The Henley College)
Charlie Piper (Harlequins, Cranleigh School)
Dan Preston-Routledge (Leeds Carnegie, Prince Henry's Grammar School)
Sam Smith (Worcester Warriors, Old Swinford Hospital)
Alistair Wade (Camberley RFC, Godalming College)
Aston Whitlow (Alnwick RFC, Gosforth Academy, Newcastle Falcons)
Sean Brown (Darlington Mowden Park, Newcastle Falcons)
Colin Dickson (Worcester Warriors, Ellesmere College)
Oliver Fewtrell (Derby RFC, Queen Elizabeth Grammar School, Leicester Tigers EPDG)
Jordan Gott (London Irish, St. Pauls Catholic College)
Lewis Jones (Dunstable RFC, Moulton College, Northampton Saints)
Jack Maplesden (Saracens, Woodhouse Grove)
Aaron Morris (Bedford Blues, Biddenham Upper School)
Tom Morton (Sale Sharks, Stockport Grammar School)
Tom Penny (Alnwick RFC, Newcastle RGS, Newcastle Falcons)
Ben Pointon (Northampton Saints, Rugby School)