Existem muitos seres no Universo Jornada nas Estrelas que usam telepatia, agora os primeiros que eu posso lembrar que eu não vejo usando comunicação verbal seriam os Melkots. Embora Richard esteja certo sobre Cairns perder sua capacidade de se comunicar verbalmente e ensinar as pessoas a se comunicarem telepaticamente, os Melkots foram introduzidos na Era Kirk.
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The Melkot (or Melkotians) were a telepathic and xenophobic
civilization from the Alpha Quadrant. The Melkot used their telepathic
powers to punish aliens who encroached upon their space without
permission (which, prior to 2268, they never extended).
The Federation made First Contact with the Melkotians in 2268, when
the USS Enterprise encountered an orbiting warning buoy. When
Enterprise Captain James T. Kirk ignored the Melkot warning to leave
their territory and instead, assumed orbit and beamed down a landing
party, the Melkotians passed harsh judgment on the landing party,
describing them as "aliens" and "disease" and condemning them to death
for their trespass.