Star Trek: The Next Generation

“The Schizoid Man”

Episode Number32 (2.06)
Production Number131
Original Airdate21-Jan-1989
StoryRichard Manning & Hans Beimler
TeleplayTracy Tormé
DirectorLes Landau
Data speaks with Graves while Selar runs scans

The Enterprise answers a distress call from Gravesworld. Dying scientist Dr. Graves transfers his mind and knowledge into Data and takes over his personality.

Guest Cast

Diana Muldaur (Dr. Katherine Pulaski)
W. Morgan Sheppard (Dr. Ira Graves)
Susie Plakson (Lieutenant Selar)
Barabra Alyn Woods (Kareen Brianon)

  • Data tries to grow a beard at the beginning of the episode.
  • Dr. Graves claims to have taught Data's creator, Dr. Soong, everything he knew. In effect, he is the father of Soong's work and asks Data to call him "Grandpa."
  • The Enterprise has to leave to answer a distress call from the U.S.S. Constantinople, which is why Dr. Selar was on the away team in place of Dr. Pulaski.
  • This episode marks the only on-screen appearance by the Vulcan physician Dr. Selar, though she is mentioned by name several times throughout the series.
  • Susie Plakson (Dr. Selar) will go onto play Ambassador K'Ehleyr in "The Emissary".