Star Trek: The Next Generation In Theory (Season 4, Episode 25)
TV-PG
TV Episode | 45 min | Action, Adventure, Drama

Star Trek: The Next Generation

In Theory (Season 4, Episode 25)

TV-PG

TV Episode | 45 min | Action, Adventure, Drama

When a female crew member is infatuated with Lieutenant Commander Data, he decides to give a romantic relationship a try. Also, the Enterprise finds itself having to maneuver through a dangerous nebula.

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Cast	+ Add Cast
34 cast members

Name	Known for
Patrick Stewart Captain Jean-Luc Picard Captain Jean-Luc Picard See fewer	Logan (2017)
Jonathan Frakes Commander William Thomas 'Will' Riker Commander William Thomas 'Will' Riker See fewer	Star Trek: First Contact (1996)
LeVar Burton Lieutenant Commander Geordi La Forge Lieutenant Commander Geordi La Forge See fewer	Star Trek: Generations (1994)
Michael Dorn Lieutenant Worf Lieutenant Worf See fewer	Star Trek: First Contact (1996)
Gates McFadden Doctor Beverly Crusher Doctor Beverly Crusher See fewer	Star Trek: Picard (2020)
Marina Sirtis Counselor Deanna Troi Counselor Deanna Troi See fewer	Star Trek: The Next Generation (1987)
Brent Spiner Lieutenant Commander Data Lieutenant Commander Data See fewer	Star Trek: First Contact (1996)
Michele Scarabelli Lt. Jenna D'Sora Lt. Jenna D'Sora See fewer	Alien Nation (1989)
Rosalind Chao Keiko O'Brien Keiko O'Brien See fewer	3 Body Problem (2024)
Colm Meaney Chief Miles O'Brien Chief Miles O'Brien See fewer	Star Trek: Deep Space Nine (1993)
Pamela Winslow Kashani Ensign McKnight (as Pamela Winslow) Ensign McKnight (as Pamela Winslow) See fewer	Star Trek: The Next Generation (1987)
Whoopi Goldberg Guinan Guinan See fewer	Ghost (1990)
Majel Barrett Enterprise Computer (voice) Enterprise Computer (voice) See fewer	Star Trek: First Contact (1996)
Joyce Agu Ensign Gates (uncredited) Ensign Gates (uncredited) See fewer	Star Trek VI: The Undiscovered Country (1991)
Rachen Assapiomonwait Crewman Nelson (uncredited) Crewman Nelson (uncredited) See fewer	Showdown in Little Tokyo (1991)
Joe Baumann Crewman Garvey (uncredited) Crewman Garvey (uncredited) See fewer
Gary Baxley Thorne (uncredited) Thorne (uncredited) See fewer	Jurassic World (2015)
Thomas J. Booth Enterprise-D Ops Officer (uncredited) Enterprise-D Ops Officer (uncredited) See fewer
Michael Braveheart Crewman Martinez (uncredited) Crewman Martinez (uncredited) See fewer	Star Trek: Klingon Academy (2000)
Nyra Crenshaw Ops Ensign (uncredited) Ops Ensign (uncredited) See fewer
Gerard David Jr. Operations Division Officer (uncredited) Operations Division Officer (uncredited) See fewer	Knots Landing (1979)
Wendy L. Davies Enterprise-D Sciences Officer (uncredited) Enterprise-D Sciences Officer (uncredited) See fewer	Point of No Return (1993)
Denise Deuschle Science Division Officer (uncredited) Science Division Officer (uncredited) See fewer
Jeremy Doyle Enterprise-D Ensign (uncredited) Enterprise-D Ensign (uncredited) See fewer
Keith Gearhart Science Division Officer (uncredited) Science Division Officer (uncredited) See fewer	The Secret Life: Jeffrey Dahmer (1993)
Melanie Hathorn Enterprise-D Sciences Officer (uncredited) Enterprise-D Sciences Officer (uncredited) See fewer	Pentathlon (1994)
Ritt Henn Alien Bassoonist (uncredited) Alien Bassoonist (uncredited) See fewer	Across the Universe (2007)
Mark Lentry Science Division Officer (uncredited) Science Division Officer (uncredited) See fewer	Space: Above and Beyond (1995)
Jeri McBride Enterprise-D Sciences Officer (uncredited) Enterprise-D Sciences Officer (uncredited) See fewer	Star Trek: The Motion Picture (1979)
Lorine Mendell Crewman Diana Giddings (uncredited) Crewman Diana Giddings (uncredited) See fewer	Hunter (I) (1984)
Keith Rayve Command Division Ensign (uncredited) Command Division Ensign (uncredited) See fewer	NYPD Blue (1993)
Denise Lynne Roberts Patti (uncredited) Patti (uncredited) See fewer	Star Trek: Insurrection (1998)
Georgina Shore Lt. Van Meyter (uncredited) Lt. Van Meyter (uncredited) See fewer	Hell Comes to Frogtown (1988)
Guy Vardaman Darien Wallace (uncredited) Darien Wallace (uncredited) See fewer	Reeker (2005)