Acker Esswein was a 23rd century member of Starfleet, an officer of security with the rank of ensign serving aboard the Federation starship USS Enterprise in the 2260s decade.

In 2270, when the Enterprise returned to Earth at the end of her five-year mission, Esswein was promoted from ensign to lieutenant, junior grade. (TOS novel: The Lost Years)

Appendices[]

Connections[]

USS Enterprise (NCC-1701) security & tactical personnel
under Robert April	F. D. Reed	under Christopher Pike	P. Bryce • Collins • Endel • A. Hardin • Orloff • D. Reed • Ross • Noonien-Singh • M. Takahara • B. Tuval • Valdini
under James T. Kirk (first five-year mission)	R. Abrams • Autry • B. al Auriga • M. al-Baslama • Alonzo • Ames • J. Anderson • J. Anderson's impostor • Apple • Archer • J. Aristeides • M. A. Arrunja • Asherman • Atete • Autry • Bachman • Bardoli • Barrows • P. Bates • Baxter • H. Beason • Beltre • L. Benitez • Berengaria • Bobynin • Boyd • N. Boggs • Borido • Bounds • L. Breen • Brennan • Brentano • Brickston • J. Buchert • Butterfield • Carlisle • Carlucci • Carver • Chavez • P. Chekov • Chevalier • Ching • Chopra • Christensen • Clark • Clark • G. Collier • B. Collins • Compton • Corcoran • J. Cordova • Creighton • J. Cruz • S. Darnell • Davis • Davison • B. Davoff • DeCamp • DeCastro • Devereaux • Dickerson • Digard • Doyle • Endercott • A. Esswein • Evans • Evans • Everts • Ferris • Fields • Fitzgerald • Fitzroy • J. Freeman • M. Flynn • Fphargn • Franklin • Friedman • M. Fuller • S. Fuller • Gabler • Gallagher • D. Galloway • S. Garrovick • R. Garvin • Garvin • Gary • Gebson • Gemas • B. Giotto • Gomez • Gorden • Grant • Hacker • Hadley • S. Hallie • Hanashiro • Handley • Harlow • Harrison • Hasmid • Hendorff • Herring • Hevelin • Hilambo • Hixon • Hrolfson • A. Huff • Inciviglia • Jakobs • Jameson • M. Jameson • Jamison • Jansen • Jennings • Johnson • Johnson • R. Johnson • Johnstone • M. Josephs • Kaplan • A. Kaplan • Kasuki • Kelly • Kellum • R. Kelowitz • Klinsky • Kirby • Korenman • Krawchuk • Lamia • Lang (Ensign) • Lang (Lieutenant Commander) • Lebrun • R. Lemli • S. Lerner • Leskanich • R. Leslie • Levitz • Lewis • Lindenbaum • Ling • Lopez • Lowry • Mallard • Mallory • Manning • Marple • Martins • Masaryk • Masters • E. Mathews • Matthews • McGaren • Meyers • Michaels • N. Minecci • Montgomery • M. Moore • Morton • Mosley • Murphy • B. Nairobi • Namura • H. Ndugu • Neal • Nelson • Neon • L. Nguyen • A. Nored • O'Herlihy • O'Hyr • Olag • E. Olaus • O'Neill • Onorax • Ordover • Organa • Osborne • O'Shay • Oyama • Paikert • Parham • Patten • Pauli • Phillips • Porter • Pulaski • F. Ragsdale • Rainer • E. Rayburn • Reems • Reichert • Rivera • Rizzo • R'leez • B. Robinson • Rogers • Rojas • Rowe • Sanders • A. Schang • Shanti • Shea • Sheckley • Shimada • Silverman • Sinclair • Slott • Smith • Snnanagfashtalli • K. Spencer • J. Stanger • Steib • D. Steinberg • Sentell • Stragey • Suarez • Swenson • Tadaki • Thomas • J. Thompson • Thorton • Timmons • Tique • I. Tomson • Trancas • Tremayne • Trucco • Tuan • Tully • Tuthill • Ush • Valdini • J. van Dreenan • Van Pelt • Vierne • Vinci • M. Vorozh • Wein • Wheeler • J. Williams • Williams • Willis • B. Wilson • Wodsworth • Wolfman • Wood • Worsley • Wu
subsequent missions under Kirk & Spock	J. Aragonés • M. A. Arrunja • Anderson • Barnes • Barrasso • M. Bergstresser • J. Byrnes • Carver • Castora • Chavez • Chavi'rru • P. Chekov • S. th'Clane • T. Collins • Corey • Davidson • Dobius • Emigh • Estano • Farnsworth • M. Fox • Friedman • Galloway • Garrison • Glaser • Gomez • L. Gottlieb • Gunderson • S. Hallie • M. Howard • Hrdina • Jaffe • Jagr • Keth • Kinitz • C. Lance • Larek • M. Latham • Lemieux • C. Leno • D. Markson • C. Matlock • S. Mendoza • Merlino • Mosley • Mullen • Murphy • M. Nizhoni • O'Grady • S. Ohara • Padilla • Paek • Pearson • J. Perez • Pfeiffer • Phillips • M. Publicker • Ralston • Ramirez • R. Randall • Recchi • Richardson • Robinson • B. Robinson • Samuelsson • Santana • Sh'aow • Smith • Sternbach • B. St. John • D. Sweeney • Tagsut • Takashida • F. Tanka • Tate • Tenzing • T'Hesh • Tiilson • Tocchet • Todd • Trottier • Umeki • Vlastikovich • B. Wagner • Worene • J. Workman • Yendes • M. Z'ar • Zorn
see also: administrative personnel • communications personnel • engineering personnel • medical personnel • pilots & flight control personnel • sciences personnel • senior staff • unnamed (2240s and 2250s • 2260s • 2270s and 2280s)

Appearances and references[]

• TOS novel: The Lost Years