Wallarian
From Tardis Wiki, the free Doctor Who reference
The Wallarians are a species briefly mentioned by Vorg. They are known to be great gamblers and are famous for the Wallarian Exhibition. There is also a Wallarian wrestler known as "The Great Zarb". (DW: Carnival of Monsters)
Kist Magg Thek Lutiven-Day Slitheen briefly mentions his Slitheen relative about purchasing some plans from a Wallarian. (SJA: Revenge of the Slitheen)
