Joseph (Oh No It Isn't!)

Joseph (or Joseph the Porter) was the name of two porters of Bernice Summerfield, or possibly the same one.

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Originally he was an android assistant to Victor Farrison who sacrificed himself to save Ace, the Doctor and Bernice Summerfield. The Doctor however takes his omnitronic processor stating he will give it to someone who can salvage the personality from it. (BFA: The Dark Flame)

When Bernice Summerfield takes up residency at St. Oscar's University on the planet Dellah Joseph was her robotic porter drone. He resembling a floating billiard ball who kept messages and relays information to her. (BNA: Oh No It Isn't!)

It was later revealed that Joseph was in fact a spy for God and was a ship by the name of J-Kibb in 'disguise'. (BNA: Tears of the Oracle)

After Dellah was destroyed and Bernice moved to the Braxiatel Collection Irving Braxiatel gave her a new porter, Joseph, who was either based off of the Joseph that Bernice had on Dellah or based from the omnitronic processor that  the Doctor salvaged from the Joseph android. (BFBS: The Doomsday Manuscript)