Galvatron was a mechanoid and a Transformer who had a history with the Freelance Peacekeeping Agent Death's Head. When Galvatron traveled back into Earth history, Death's Head followed him to obtain a bounty. (COMIC: Meet Death's Head)
Clara Oswald once played with a toy which resembled Galvatron. (TV: The Crimson Horror)
Behind the scenes[]
Galvatron in Buring Sky
The toy robot which Clara plays with in The Crimson Horror is the original G1 Galvatron figure from 1986. This stands somewhat at odds with COMIC: Meet Death's Head, which implies that The Transformers and Doctor Who take place in the same "universe." However, The Incomplete Death's Head retcons that the "Robot universe" is actually a separate reality from the Doctor's, a belief commonly repeated in both Marvel and Transformers continuity.
G1 Galvatron was voiced by Leonard Nimoy in The Transformers: The Movie (in which Galvatron made his debut), and by Megatron voice actor Frank Welker in The Transformers seasons 3 and 4.