The actress told Digital Spy at today's Doctor Who screening that she will be appearing in the spoof police show.
Gillan refused to give away any details about her character, but added that she will begin filming for the programme soon.
A Touch of Cloth, penned by Charlie Brooker, stars John Hannah and Suranne Jones as detectives in a spoof of police dramas.
A two-part story has been shot and will air later this month, but two further editions of A Touch of Cloth have already been commissioned by Sky1 and are expected to air next year.
Gillan, who will leave Doctor Who this series, has previously admitted that she would love a role in the US comedy Community.
Watch a trailer for the first A Touch of Cloth special below: