Doctor Who star Peter Capaldi will narrate a documentary about what it is like to have a parent in prison for BBC Children In Need.
Prison, My Parents And Me will show what it is like to be a prisoner's child, and give children often lost in the system a chance to tell their own stories.
Nearly 10,000 children visit a parent in prison every week and face bullying and isolation in the outside world while their parent is inside.
Peter said: "I am proud to be supporting BBC Children In Need and the Prison, My Parents And Me documentary. I hope that the film raises the profile of those working to support children who have a parent in prison - as well as highlighting what still needs to be done."
The BBC Children In Need appeal show will feature a first look at the Doctor Who Christmas special when it airs on November 18.
Prison, My Parents And Me airs on November 15 on BBC One at 10.45pm.