Barnabas (Pugwash Ahoy!)

A member of Captain Pugwash's crew held his gun towards the First Doctor when his TARDIS materialised on the ship. (NOTVALID: Pugwash Ahoy!)

Behind the scenes
Barnabas was not named in NOTVALID: Pugwash Ahoy!, as he would be recognisable to the usual audience of Captain Pugwash.