<Li> Eric Menyuk as The Traveler, a member of a species from Tau Alpha C who mentors Wesley Crusher . </Li> <Li> Lycia Naff as Sonya Gomez, engineering officer on the USS Enterprise - D . </Li> <Li> Natalia Nogulich as Alynna Nechayev, flag officer in charge of Cardassian affairs . </Li> <Li> Robert O'Reilly as Gowron, leader of the Klingon Empire . </Li>

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