Some notable participants include Romesh's mum, Scott Caizley under the nickname OMG PHD, Param Singh who is Wheeler Dealer, and Anglia TV announcer Katie Glass who is You're History.

In the first series, 29 people appeared on the show: Vlogger, Vicars Daughter, Privileged, Yes Miss, Football Mad, OMG PHD, Lord Dave, Selfie Queen, EcoVegan, Wannabe MP, Mindful, Oxbridge, Dog Father, Technophobe, Table for One, Small Town Girl, Ex Banker, Gen Z, Wheeler Dealer, The Skipper, Single Dad, You're History, Witness the Fitness, Romesh's Mum, Never Voted, Granny To Be, Pride of Wales, Comic Book Guy, and Green Fingers.

Series two included 25 members from the public: Romesh's mum, Craft Beard, Privileged, You're History, Never Voted, Lord Dave, Small Town Girl, Pride of Wales, Ex Banker, Mani-Pedi, Vlogger, Glam Gran, Wheeler Dealer, Technophobe, Metalhead, Old Bill, Green Fingers, Gen Z, Football Mad, Watch Your Language, Wine Buff, The Dogfather, Oxbridge, The Skipper, and Comic Book Guy.

The third series included 20 members from the public including Romesh's mum, Old Bill, The Dogfather, You're History, Never Voted, Lord Dave, Small Town Girl, Ex Banker, Pride of Wales, Oxbridge, Country Life (New Member), Vlogger, Wheeler Dealer, Technophobe, Gen Z, Picture This, Football Mad, Watch Your Language, The Skipper, Comic Book Guy, Metalhead, Glam Gran, and Folk Hero.

The Ranganation series 4 has included 22 members from the public including Romesh's mum, Vlogger, You're History, The Dogfather, Never Voted, Lord Dave, Small Town Girl, Pride of Wales, Folk Hero, Technophobe, Wheeler Dealer, Country Life, Renaissance Man, Oxbridge, Chippy Tea, Ex Banker, Glam Gran, Football Mad, Metalhead, Watch Your Language, Comic Book Guy, Flying Circus, and Gen Z.