In Theory

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Contents (6 sections)
| Code | S04E25 (episode 99 overall) |
| Aired | 1991-06-03 (Wikipedia · Memory Alpha) |
| Stardate | 44932.3 |
| Director | Patrick Stewart (Wikipedia · Memory Alpha) |
| Writer | Joe Menosky (Wikipedia · Memory Alpha) & Ronald D. Moore (Wikipedia · Memory Alpha) |
| Arcs | Data |
| Transcript | read the transcript |
Synopsis
Data, advised by crewmates, builds a programme to pursue a romance with Jenna D'Sora while the Enterprise is damaged by spatial deformations in the Mar Oscura nebula. Picard pilots a shuttle to guide the ship out. Jenna ends the relationship, saying Data cannot feel anything for her.
Log entries
Captain's log, stardate 44932.3 The Enterprise is preparing to enter the Mar Oscura, an unexplored dark matter nebula. Commander Data is modifying several new photon torpedoes for an experiment designed to elicit more information about this unusual phenomenon.
Second Officer's personal log, stardate 44935.6. After conferring with my colleagues regarding the nature of romantic love in general, and my own situation in particular, I have reached a decision.
Captain's log, supplemental. This series of unexplained events has now resulted in the death of a crewmember, but it appears that Mister Data may have an explanation.
Characters (15 speaking)
| Character | Lines |
|---|---|
| Lieutenant Commander Data | 113 |
| Ensign Jenna D'Sora | 71 |
| Captain Jean-Luc Picard | 51 |
| Commander William T. Riker | 31 |
| Lieutenant Worf | 22 |
| Lieutenant Commander Geordi La Forge | 20 |
| Ensign McKnight | 10 |
| Guinan | 8 |
| Chief Miles O'Brien | 6 |
| Counselor Deanna Troi | 4 |
| Keiko O'Brien | 3 |
| Computer | 2 |
| Miles | 1 |
| Dr Beverly Crusher | 1 |
| Thorne | 1 |
Present without dialogue
Characters with no lines who appear according to the cast list or the stage directions.
- Ensign Gates (cast list)
Locations (51 scenes)
| Location | Scenes |
|---|---|
| Bridge | 17 |
| Shuttle | 9 |
| Torpedo bay | 3 |
| Corridor | 3 |
| Data's quarters | 3 |
| Observation lounge | 3 |
| Ready room | 3 |
| Engineering | 3 |
| Ten Forward | 2 |
| Jenna's quarters | 2 |
| Sickbay | 1 |
| Troi's office | 1 |
| Transporter room | 1 |
Cast
From Memory Alpha. Linked where the credit could be matched to a transcript label.
Starring
- Patrick Stewart as Capt. Jean-Luc Picard (Captain Jean-Luc Picard)
- Jonathan Frakes as Cmdr. William Riker (Commander William T. Riker)
Also starring
- LeVar Burton as Lt. Cmdr. Geordi La Forge (Lieutenant Commander Geordi La Forge)
- Michael Dorn as Lieutenant Worf (Lieutenant Worf)
- Gates McFadden as Dr. Beverly Crusher (Dr Beverly Crusher)
- Marina Sirtis as Counselor Deanna Troi (Counselor Deanna Troi)
- Brent Spiner as Lt. Commander Data (Lieutenant Commander Data)
Guest stars
- Michele Scarabelli as Jenna D'Sora (Ensign Jenna D'Sora)
- Rosalind Chao as Keiko O'Brien (Keiko O'Brien)
- Colm Meaney as Miles O'Brien (Chief Miles O'Brien)
- Pamela Winslow as McKnight (Ensign McKnight)
Special guest star
- Whoopi Goldberg as Guinan (Guinan)
Co-star
- Majel Barrett as Computer Voice
Uncredited co-stars
- Rachen Assapiomonwait as Nelson
- Joe Baumann as Garvey
- Gary Baxley as Thorne
- Thomas J. Booth, Mark Lentry, Michael Moorehead, Karen Uchizono as civilian (4 performers)
- Michael Braveheart as Martinez
- Max Cervantes, Nyra Crenshaw, Hunt as operations officer (3 performers)
- Gerard David, Jr. as operations ensign
- Wendy Davies, Denise Deuschle, Keith Gearhart, Michele Gerren, Melanie Hathorn, Jeri McBride, Brandy Pickett, Harry Young as sciences officer (8 performers)
- Jeremy Doyle as operations ensign
- Ritt Henn as alien bassoonist
- Phil Mallory as French horn player
- Marin as command officer
- Lorine Mendell as Diana Giddings
- Rad Milo as command ensign
- Keith Rayve as command ensign
- Denise Lynne Roberts as Patti
- Joycelyn Robinson as Gates (Ensign Gates)
- Georgina Shore as Van Mayter
- Curt Truman as command officer
- Guy Vardaman as Darien Wallace