Tricia Cadwallader was a Human Starfleet officer who served in the 24th century.

Cadwallader was born in Sydney, Australia, and graduated Starfleet Academy with honors serving on ships like the USS Goddard, USS Victory, and the USS Thomas Paine. She was a junior communications officer aboard the USS Stargazer who survived the Maxia Zeta incident she then transferred to Gilaad Ben Zoma's new ship the USS Lexington. (Star Trek: Stargazer and TNG novel: Reunion)

USS Stargazer personnel
USS Stargazer (NCC-2893)	Ang • G. Asmund • I. Asmund • G. Ben Zoma • E. Bender • J. Caber • T. Cadwallader • A. Carriello • J. Crusher • Durand • S. Grace • C. Greyhorse • Hanta • Iulus • Jiterica • P. Joseph • N. Kastiigan • Ki'hiut • Kochman • Kotsakos • S. Leach • Lisuni • I. Maisel • Merritt • Morgen • A. Nikolas • Obal • C. Paris • Pfeffer • J.L. Picard • Pierzynski • B. Refsland • D. Ruhalter • Satran • Schuster • P. Simenon • Stroman • Suranyi • T'Moni • D. Ulelo • Urajel • J. Valderrama • Vandermeer • Vigo • Werber • E. Wu • Yojaleya
USS Stargazer (NCC-2893-A)	Hendry • Rackham

USS Victory (NCC-9754) personnel
	A. Brevelle • T. Cadwallader • P. Hickman • G. La Forge • S. Liejten • E. Mendez • M. Zimbata

USS Lexington personnel
USS Lexington (NCC-1709)	J. Baila • Berriman • P. Coss • D.W. Davidson • Garth of Izar • Ito • T. Ivari • L. Kelso • W.C. Perinal • M. Rousseau • W. Samuels • D. Sinclair • L. Sterling • C. Stuart • N. Uhura • Watley • R. Wesley
USS Lexington (NCC-14427)	Declan Keogh • Manojlovich • Rosita Pérez
USS Lexington (NCC-61832)	T. Allenby • H. Anderson • Antonacci • Audrey • G. Ben Zoma • Bowdren • T. Cadwallader • S. Carson • Cavanaugh • J. Cox • Eberling • Fornnel • Gaines • F. Galloway • Griscom • Halprin • Hasegawa • G. Jenson • P. Joseph • Kumagai • Leff • E. Lense • R. Mithra • Moytulix • Pridemore • Rodgers • Soriano • J. Turner • Twistekey • Man-Fai Wan • Wilhoite
USS Lexington (Steamrunner-class)	A. Jago