Mary Jane Hetzlein was a brown-haired human female with dark brown eyes serving in Starfleet in the 23rd century. She was assigned to Starbase 47's security division.
In 2268, Lieutenant Hetzlein and Chief petty officer Joe Gianetti were ordered to extradite Diego Reyes from the Orion merchant vessel Omari-Ekon. Unfortunately, the attempt was unsuccessful and both security officers were killed. (VAN novel: What Judgments Come)
| Starbase 47-Vanguard personnel | ||||||||||||||||||||||||||||||||||||||||||||||
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| Ballard • Beyer • Braun • Briv • Cannella • Charles • Collig • Cooper • Desai • Dunbar • Farber • Finneran • Fisher • jav Gek • Gianetti • Goldrosen • Greenfield • Heffron • Hetzlein • Hofstadter • Holmgren • Humberg • Jackson • Kiraar • Knight • Koothrappali • Langlois • Lenger • Liverakos • Malhotra • Marcus • M'Benga • Medeira • Meeker • Miller • Moyer • Mugavero • ch'Nayla • Nogura • Pimental • Reyes • Robles • Seklir • Shepherd • th'Shoras • Sohl • Sozlok • Strout • Tamishiro • Tarcoh • Tescar • Thelex • T'Prynn • Vumelko • Wallingford • Wolowitz • Xiong • unnamed Vanguard personnel |   
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