The emissary sent to intercept the Klingon vessel I.K.C. T'Ong, whose crew is in cryogenic suspension, is Worf's past mate, K'Ehleyr. They must stop the Klingons from attacking in Federation space.

Diana Muldaur (Dr. Katherine Pulaski)
Suzie Plakson (Ambassador K'Ehleyr)
Lance Le Gault (Captain K'Temoc)
Georgann Johnson (Admiral Gromek)
Colm Meaney (Chief Miles O'Brien)

Anne Elizabeth Ramsey (Ensign Clancy)
Dietrich Bader (Tactical Officer)

• The K't'inga-class Klingon Bird of Prey was recycled from Star Trek: The Motion Picture.
  
• Suzie Plakson previously played Dr. Selar in "The Schizoid Man". K'Ehleyr returns in the 4th season episode "Reunion".
  
• K'Ehleyr is only half-Klingon. Her father was Klingon, her mother human.
  
• Wesley does not appear in this episode.