Doctor Syral was a Vulcan "consultant" assigned to Section 31. His main duty was to administer the Demon Scenario test to potential recruits. (TOS - Strange New Worlds 8 short story: "Demon")

Known members and associates of Section Thirty-One
31	Julian Bashir • Lance Cartwright • Cole • Dietz • Matthew Dougherty • Sarina Douglas • Enderby • Harris • Jedburgh • Bendes Kettaract • L'Haan • Peter Lawrence • Ethan Locken • Roberta Luke • Erovan M'Rill • Tinh Hoc Phuong • Tomas Roeder • Luther Sloan • Aubin Tabor • Malcolm Reed • William Ross • Connaught Rossa • Charles Tucker III • Vasily Zeitsev • Cortin Zweller • Franklin Drake	31