Dilat th'Sena was an Andorian in Starfleet in the early 24th century. She was noted for her sense of humor, and for her skills as a poker player. She was not a thaan, but used the thaan prefix in her name.

By 2328, th'Sena held the rank of lieutenant commander, and was assigned as a security officer aboard the USS Gettysburg under the command of Captain Mark Jameson. She was killed in 2328, less than six months into her assignment, during an assault on a secret Cardassian base on the moon of Delavi III. (CoE eBook: Turn the Page)

USS Gettysburg personnel
	A. Bradford • D. Gold • Mairin ni Bhroanin • M. Jameson • Jolev • Rha-Teramaet • Dilat th'Sena • T'Vel