- Played by Seymour Cassel.
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Lieutenant Commander Hester Dealt was a male Human Starfleet officer in the 24th century. In...
Seymour Joseph Cassel (born 22 January 1935; age 83) is a veteran actor who played Lieutenant...
Starfleet, sciences division: A Adislo, Hars, Alans, Alden, April, Dr. Sarah, Aster, Marla