Benton, whose TV credits include Waterloo Road, Early Doors and Catterick, will play Perks, the station porter.
The Railway Children tells the story of Bobby, Peter and Phyllis, three children whose lives change dramatically when their father is mysteriously taken away. They move from London to a cottage in rural Yorkshire with their mother where they befriend the local railway porter and embark on a magical journey of discovery, friendship and adventure.
The show boasts a set featuring the old Gentleman’s saloon carriage from the 1970 film version and a period steam train - the 'Stirling Single' - from the National Railway Museum, where Damian Cruden’s production was first seen in 2008.
Mark Benton’s recent stage credits include Toad in The Wind in the Willows for Northern Stage, A Day in the Death of Joe Egg for Nottingham Playhouse, Comedians for the Lyric Hammersmith, Kosher Harry for the Royal Court and The Front Page at the Donmar Warehouse.
In other casting news: