Hop Pyleen Brother 2
From Tardis Wiki, the free Doctor Who reference
Hop Pyleen, along with his brother, attended Earth Death aboard Platform One in the year 5,000,000,000. (TV: The End of the World)
Behind the scenes
The co-inventor of hyposlip travel was invited with his brother to the party for the End of the World on Platform One.
The two brothers Hop Pyleen were each represented by a Battles in Time trading card.