The Pike sisters were born in 23 BBY, the daughters of famous Teräs Käsi fighter Dux Pike. He died when they were infants, just before the start of the Clone Wars. Their mother was a noblewoman of Bunduki. She placed the twins, as children, in the hands of Followers of Palawa for their education.
Zan and Zu went on to become Teräs Käsi masters themselves, and criminals for the highest bidder. They competed in illegal fighting matches across the galaxy. In 3 ABY, Xizor had them hired to work for Black Sun. Following his death, they signed on to work with Spinda Caveel, who sent them to acquire A-OIC and, later, to re-acquire him and the Human replica droid Guri. On this latter expedition, they encountered the Heroes of Yavin, and decided to cut their losses, quitting their employment with Caveel. When he drew his blaster to keep them on task, they killed him.
Zu flew the Steel Hand, a two-person starfighter, with her sister as a passenger.
- (Indirect mention only)
- Shadows of the Empire novel (First appearance)
- Shadows of the Empire junior novelization (Appears in hologram)
- Shadows of the Empire: Evolution
- Shadows of the Empire Sourcebook
- Star Wars Encyclopedia
- A Guide to the Star Wars Universe, Third Edition, Revised and Expanded
- Rebellion Era Sourcebook
- Hero's Guide
- The Complete Star Wars Encyclopedia
- Galaxy at War
- Star Wars Galaxies Trading Card Game – The Shadow Syndicate (Card: Zan Pike)
- Star Wars Galaxies Trading Card Game – The Shadow Syndicate (Card: Zu Pike)