Tigart Hedda was a middle-aged Bajoran female who worked in the tourism office on the Promenade of Deep Space 9 in the 2370s. Hedda had a sister who was a cleric on Bajor.

In 2376, Tigart was taken host by a queen parasite and spawned nearly fifty soldier parasites to take hosts on Deep Space 9. In September of that year one of the queen's latest soldiers attempted to take Ro Laren as host, resulting in the queen's capture. Doctor Julian Bashir removed the queen for study, resulting in Tigart's unavoidable death. (DS9 novel: Unity)

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