Costello was a 24th century Human man, a Starfleet security officer in the 2370s decade.

Biography[edit | edit source]

In 2371, Costello was assigned to the USS Hawking before transferring to Deep Space 9 later in the year. (DS9 comics: "Wargames", "Vacation's Over")

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Appearances and references[edit | edit source]

Appearances[edit | edit source]

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