Wadi; Tall humanoids from the Gamma Quadrant. The Wadi have a cultural fascination with games and gambling. Wadi have relatively primitive interstellar technology, but their transporter and holographic technology is unparalleled. Their advanced holdeck/transporter technology is an integrated component of many Wadi games, including their famous Chula. Wadi maintain little contact with the rest of the Galaxy but occasionally travel to the Alpha Quadrant for recreational purposes. DS9 "Move Along Home" 1-10

wisps of smoke; Noncorporeal creatures who seek to trade consciousnesses with the crew members. ENT "The Crossing" 2-44

Wraiths; This is how the Eskans referred to the indigenous shapeshifters they hunted on the rogue planet. The wraiths, who possessed telepathic abilities, could assume various forms. One appeared to Captain Archer as a woman from a Yeats poem, in order to ask for his assistance. ENT "Rogue Planet"

Wogneer creatures; A group in the Ordek Nebula, one of many that the faux-cadet Haro says Picard has put his life on the line for. TNG "Allegiance" 3-66