Galley master
From Tardis Wiki, the free Doctor Who reference
The galley master was in charge of the slaves aboard the galley to which Ian and Delos were assigned in 64. They tried to trick him by faking Delos' death, but he wasn't fooled.
When the ship was swamped by a storm, Delos and Ian escaped overboard, with Delos taking the galley master's key. (TV: The Romans)
