Chista was an Isitri male alive during the 23rd century.

In 2270, Chista was a member of the Isitri Council when they discovered that Berlis Aknista was a "troublesome mind". This discovery led the council to order Berlis' death, but the USS Enterprise intervened and saved Berlis. Following this the Enterprise arrived at Isitra Zero to discuss the situation and Chista was the one that explained the entire "troublesome mind" problem to Captain Kirk. Later, Chista, along with the rest of the Isitri, came under the control of Berlis and were only freed by further intervention of the Enterprise. (TOS novel: Troublesome Minds)

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