Roja

Roja was a boy from the eighteenth century who joined Sabbath's crew. (PROSE: Trading Futures)

Biography
Roja was recruited by Sabbath to serve as one of his agents, taking action to monitor the timeline and ensure that it remained on schedule according to Sabbath's vision. However, his 'career' was cut short when his partner, Madame Jaxa, was killed by Jonah Cosgrove, with the Doctor subsequently informing Roja that he didn't really exist- his name being a pun on the non-existent 'Roger the Cabin Boy' from Captain Pugwash- distracting him by prompting him to protest his existence long enough for the Doctor to escape and Cosgrove to shoot Roja. (PROSE: Trading Futures)