Dad (Silence in the Library)

Dad was a computer program in the Data Core that simulated a father for Charlotte Lux. He was very concerned for Charlotte, and greatly appreciated visits from Doctor Moon. (TV: Silence in the Library) When he suggested Charlotte to turn the television off when it was tormenting her, she used the remote control to erase him. (TV: Forest of the Dead)

Behind the scenes
The "Dad" program was played by Mark Dexter.