Tucker was a Mon Calamari (Mon Calamari) who functioned as a mercenary (mercenary). He was part of a unit (unit) employed by Ronen Tagge (Ronen Tagge) of the House of Tagge (House of Tagge). As part of Tagge's quest to locate the Rings of Vaale (Rings of Vaale), Tucker and a group of other mercenaries were sent to locate Doctor (Doctor) Eustacia Okka (Eustacia Okka). Okka declined to assist Tagge, instead fleeing with Chelli Aphra (Chelli Aphra), a rogue archaeologist (archaeologist, and her crew. The mercenaries pursued Aphra's team to Vaale (Vaale), a city (city) situated on the planet Dianth (Dianth), the rumored location of the Rings.