Katholin Arven was a human who was born and lived on the L-5 vessel, Wanderer.

When the Wanderer was discovered by the USS Enterprise in 2267, they were heading for destruction in the form of the galactic whirlpool. Arven was one of the first to make contact with the Enterprise crew when Lieutenant Kevin Riley led a contact team to the ship. Over the coming days, Arven and Riley grew a strong relationship with each other, while she helped the Enterprise crew talk with the inhabitants of the Wanderer. (TOS novel: The Galactic Whirlpool)

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