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Lieutenant Chesterton is the head prison officer working at Shawshank State Prison. He welcomed new warden Theresa Porter to the facility. Chesterton later oversaw the transport of prisoners out of the facility when Shawshank was closed down following Dennis Zalewski's massacre of other correctional officers.
Behind the scenes
Chesterton is played by Frank L. Ridley in the Castle Rock television series. The character's name is not stated on screen or in the credits, but is taken from the name on his uniform.