Jensen Ackles guest starred in Tracker season 3, episode 21 as Russell Shaw, and Jeri Ryan also appeared as Dr. Serena Jukic.

Cast notes

  • Jensen Ackles returned as Russell Shaw.
  • Jeri Ryan was a guest star as Dr. Serena Jukic.
  • Jerry Trimble was also mentioned as appearing in the episode.

Quick scoop

Episode 21 was widely described as a major Shaw-family episode, with Russell’s return driving much of the plot.

TL;DR: the main guest stars most directly identified for Tracker season 3, episode 21 were Jensen Ackles and Jeri Ryan.