Since Master of the Universe has been deleted since 2017, this information should be removed. Instead, info from the novel Almost Perfect would go here.
Jeremy Clarkson was a Top Gear presenter, meaning he also presented series 2 episode 8 (also known as "Master of the Universe"). Unlike Richard Hammond he did not appear in the sketch itself but in the studio segments before and after the skit.
Geoffrey Vantage, a character from the Big Finish Eighth Doctor audio story Max Warp played by Graeme Garden, is an unflattering and exaggerated parody of Clarkson, who attracted much controversy during his time on Top Gear.