Lieutenant Sentell was a security officer aboard the USS Enterprise during Kirk's first five-year mission.

In 2270, Sentell was assigned to guard the quarters of Berlis Aknista and his companions after they were rescued by the Enterprise. During this guard duty he waved Spock straight into Berlis' quarters so that he could interview Berlis. (TOS novel: Troublesome Minds)

USS Enterprise (NCC-1701) security & tactical personnel
under Robert April	Belas • 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 • Bragg • 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 • 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)