John Ellis

John Ellis was a citizen of the United Kingdom from 1953 who accidentally, with Diane Holmes and Emma-Louise Cowell, came through the Cardiff rift to 2007.

By 2007, his wife was long dead. After arriving, John saw his by then elderly son Alan, who suffered from Alzheimer's disease and failed to recognise him. Alan had married and had no children. John saw no purpose in his life now that his family was gone.

He tried to commit suicide but Jack Harkness stopped him. After explaining himself, Jack decided to let him kill himself. He did so by carbon monoxide poisoning. (TV: Out of Time)