Suspicions

Regulars

 * Jean-Luc Picard
 * Data
 * Beverly Crusher
 * Geordi La Forge
 * William T. Riker
 * Deanna Troi
 * Worf, Son of Mogh

Starships

 * USS Enterprise (NCC-1701-D) - Galaxy class
 * Justman - Type-6 shuttlecraft

Species

 * Betazoid
 * Ferengi
 * Human
 * Klingon
 * Takaran
 * Vulcan

States and Organisations

 * United Federation of Planets
 * Starfleet

Related Stories

 * Descent (TNG episode)
 * The Metaphasic shields featured in this episode were later used in Descent to evade the Borg.