Czyzack was a 23rd century Human woman who served Starfleet as a crewperson on board the Federation starship USS Enterprise. Czyzack was Communications Officer Nyota Uhura's backup at the communications station on the bridge. (TOS novel: Planet of Judgment)

USS Enterprise (NCC-1701) communications personnel
Under Robert April	Hall • Sanawey • Van Fleet	Under Christopher Pike	Dabisch • Garrison • Nano • Vincent • Zacharia
Under James T. Kirk & Spock	Alden • Aronson • Ashcraft • Azuela • Bryant • Czyzack • DeLeon • Dezago • Dominico • Eliot • Farrell • Goldstein • Granger • Josephs • Krelidze • Laysa • Leaming • Lin • Mahásë • Martine-Teller • Mendez • Miraskin • M'Ress • Mueller • Muir • North • Nyssa • E. Palmer • L. Palmer • Peretz • Pilar • Putman • Riley • T'zeela • Talliflores • Uhura • Vehau • Vigelshevsky • Wirrering
see also: administrative personnel • engineering personnel • medical personnel • pilots & flight control personnel • security & tactical personnel • sciences personnel • senior staff • unnamed