 "Posh" Kenneth (Daniel Kaluuya) goes to the same college as the main cast and often spends time with the boys.Madison "Mad" Twatter (Stephen Walters) features as Sid's emergency drug dealer, Doug (Giles Thomas) is a senior teacher at Roundview College, and British comedian and co-writer Josie Long appears as the college's careers counsellor.The central cast's parents are often played by well-known British comedy actors credited in a guest starring role.