Parallels

Worf, thrown between quantum realities after his shuttle crosses a fissure, finds himself married to Troi in one of them. As more Enterprises flood into Riker's universe, Worf takes the original shuttle back through the fissure, reseals it and returns home.

• Leads to Eye of the Beholder (S07E18): Related rather than explicit: Worf and Troi are married in one reality in Parallels and become lovers in Eye of the Beholder.

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 T. 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)

Special appearance by

• Wil Wheaton as Wesley Crusher (Wesley Crusher)

Guest star

• Patti Yasutake as Alyssa Ogawa (Nurse Alyssa Ogawa)

Co-stars

• Mark Bramhall as Gul Nador
• Majel Barrett as Computer Voice

Uncredited co-stars

• David Keith Anderson as Armstrong
• Michael Braveheart as Martinez
• Debbie David as Russell
• Cameron as Kellogg
• Tracee Lee Cocco as Jae
• Elliot Durant III as operations division ensign
• Gunnel Eriksson as science division officer
• Holiday Freeman, Fumiko Hamada, Oliver Theess as command division officer (3 performers)
• Kevin Grover as Cardassian helmsman
• Bill Hagy as operations division officer
• Gary Hunter as science division officer
• Kathy as Towles
• Lorine Mendell as Diana Giddings
• Michael Moorehead as science division ensign
• Joycelyn Robinson as Gates (Ensign Gates)
• John Tampoya as operations division ensign
• Mikki Val as operations division officer
• Guy Vardaman as Darien Wallace
• Christina Wegler Miles as command division ensign