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- Played by Seymour Cassel.
Appears on these pages
Lieutenant Commander Hester Dealt was the medical trustee of the Federation Medical Collection...
Seymour Joseph Cassel (born 22 January 1935; age 79) is a veteran actor who played Lieutenant...
Starfleet, sciences division: A Adislo, Hars, Alans, Alden, April, Dr. Sarah, Marla Aster