Cadet Spiros Focus was an officer in Starfleet in the late 23rd century. He was Greek.

In 2294, while assigned to the USS Excelsior, he was kidnapped by Beta Prometheans and later shot by Klingons. (TOS novel: The Fearful Summons)

Excelsior personnel
USS Excelsior (NCC-1718)		LaLiberté (CO)
USS Excelsior (NCC-2000)	2280s	J.T. Kirk (CO) • L. Styles (CO) • H. Sulu (XO) • Henreid (XO) • M. Darby (XO) • M. Scott (CENG) • L.H. McCoy (CMO) • N. Uhura (COMM) • P.A. Chekov (CSEC) • Saavik • Richardson • T. Krejci • L. Burke • Naraht • W. Bearclaw • E. Sherwood • N. Bryce • Carver • Konom • G. Wilhelmson • J. Kerasus • M. Morelli • H. Tanzer • Thimon • Lahra • H. Keith • D. Renyck • T. Spiro • E. Braun • C. Schulman • M. Rebovich • N. Orsini • Harburg • Edwards • R. Marquez
	2290s	H. Sulu (CO) • J. Rand • (XO) • P. Chekov (XO) • M. Cutler (XO) • Sencus • D. Valtane • Berger • Lojur • Grey • R. Roose • T. Henry • N. Svenson • J. Klass • B. Hans • C. Chapel • Tuvok • P. Gavin • L.J. Akaar • V. Bays • S. Focus • Henrey • N. Schmidt • S. Pastur
	24th century	H. Sulu (CO) • Crajjik (CO)
ISS Excelsior		Hikaru Sulu • Grey • Tuvok • Styles • Blaine