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Zook is a minor character that appears in Pokémon XD: Gale of Darkness. He is the only character in the games to be known as a Thug. He appears at the start of the game at Gateon Port; after Jovi, Michael's sister, ran into him, he began to threaten her with his Shadow Zangoose. However, Mr. Verich, Eldes & Ardos appeared and Ardos defeats Zook's Zangoose with his Alakazam.
Later, Michael reconfronted Zook at the Cipher Key Lair -- despite not having his Snag Machine, he beat him. He later rechallenged him after getting his machine back, only to win again. Zook then ran off to "someplace far away" where "Cipher has no influence" to escape punishment by Gorigan.
Zook is shown to have this Pokémon when he attacks Jovi, Michael, and the intervening Ardos.
Zook is shown to have this Pokémon when he attacks Biden and a Team Snagem Grunt.
- The gender of Zook's shadow Zangoose is not set in stone until it is sent out against the player at the Cipher Key Lair. Due to appearing twice before such a point, this particular Zangoose can potentially change its gender up to two times over the course of events. Such an example consists of Zangoose being female when facing Ardos at Gateon Port, male when facing Wakin at Cipher Key Lair, and female again when facing the player at Cipher Key Lair.