Diana Muldaur as Dr. Katherine Pulaski The Child Where Silence Has Lease Elementary, Dear Data Loud as a Whisper The Schizoid Man Unnatural Selection A Matter of Honor The Measure of a Man The Dauphin Contagion The Royale Time Squared The Icarus Factor Pen Pals Samaritan Snare Up the Long Ladder Manhunt The Emissary Peak Performance Shades of Gray	Whoopi Goldberg as Guinan The Child The Outrageous Okona The Measure of a Man The Dauphin Q Who? Evolution Booby Trap Déjà Q Yesterday's Enterprise The Offspring The Best of Both Worlds - Part 1 The Best of Both Worlds - part 2 The Loss Clues Galaxy's Child Night Terrors In Theory Redemption, Part 1 Redemption, Part 2 Ensign Ro Imaginary Friend I, Borg Time's Arrow, Part I Time's Arrow, Part 2 Rascals Suspicions	Colm Meaney as Chief Miles O'Brien Encounter at Farpoint Lonely Among Us The Child Where Silence Has Lease Unnatural Selection Loud as a Whisper A Matter of Honor The Measure of a Man The Dauphin Contagion The Royale Time Squared The Icarus Factor Pen Pals Q Who? Up the Long Ladder Manhunt The Emissary Shades of Gray The Ensigns of Command The Bonding Booby Trap The Enemy The Price The Hunted A Matter of Perspective Tin Man Hollow Pursuits The Most Toys Sarek Transfigurations The Best of Both Worlds - Part 1 The Best of Both Worlds - part 2 Family Brothers Remember Me Legacy Data's Day The Wounded Clues Night Terrors Half a Life The Mind's Eye In Theory Redemption, Part 2 Darmok Disaster The Game Power Play Realm of Fear Rascals All Good Things..., Part I All Good Things..., Part II
Majel Barrett as Lwaxana Troi Haven Manhunt Ménage à Troi Half a Life Cost of Living Dark Page	Carel Struycken as Mr. Homn Haven Manhunt Ménage à Troi Half a Life Cost of Living	Brent Spiner as Lore Datalore Brothers Descent, Part I Descent, Part II
John deLancie as Q Encounter at Farpoint Hide and Q Q Who? Déjà Q QPid True-Q Tapestry All Good Things..., Part I All Good Things..., Part II	Eric Menyuk as Traveler Where No One Has Gone Before Remember Me Journey's End	Andreas Katsulas as Commander Tomalak The Enemy The Defector Future Imperfect All Good Things..., Part I All Good Things..., Part II
Clyde Kusatsu as Admiral Nakamura The Measure of a Man All Good Things..., Part I All Good Things..., Part II	Tony Todd as Kurn Sins of the Father Redemption, Part 1 Redemption, Part 2	Jennifer Hetrick as Vash Captain's Holiday Qpid
Dwight Schultz as Barclay Hollow Pursuits The Nth Degree Realm of Fear Ship in a Bottle Genesis	Mark Lenard as Sarek Sarek Unification, Part I Unification, Part II	DeForrest Kelly as Admiral McCoy Encounter at Farpoint
Doug Wert as Jack Crusher Family Violations Journey's End	Jon Steuer and Brian Bonsall as Alexander Reunion New Ground Ethics Cost of Living Imaginary Friend Rascals A Fistful of Datas Firstborn	Patti Yasutake as Nurse Ogowa Future Imperfect Clues Identity Crisis The Host The Game Ethics Cause and Effect Imaginary Friend The Inner Light Realm of Fear Man of the People Parallels Lower Decks Genesis All Good Things..., Part I All Good Things..., Part II
Rosalind Chao as Keiko Data's Day The Wounded Night Terrors In Theory Disaster Violations Power Play Rascals	Denise Crosby as Sela The Mind's Eye Redemption, Part 1 Redemption, Part 2 Unification, Part II	Robert O'Reilly as Gowron Redemption, Part 1 Redemption, Part 2 Rightful Heir
Gwynyth Walsh as B'Etor Redemption, Part 1 Redemption, Part 2 Firstborn	Barbara March as Lursa Redemption, Part 1 Redemption, Part 2 Firstborn	J.D. Cullum as Toral Redemption, Part 1 Redemption, Part 2
Michelle Forbes as Ro Laren Ensign Ro Disaster Conundrum Power Play Cause and Effect The Next Phase Rascals Preemptive Strike	Wil Wheaton as Wesley Crusher The Game First Duty Parallels Journey's End	Leonard Nimoy as Spock Unification, Part I Unification, Part II
Uncredited and Hana Hatae as Molly O'Brien Disaster Power Play Rascals	Ray Walston as Boothby First Duty	James Doohan as Montgomery Scott Relics
Natalija Nogulich as Admiral Necheyev Chain of Command, Part I Descent, Part I Phantasms Journey's End Preemptive Strike	Siddig El Fadil as Bashir Birthright, Part 1	Jonathan Frakes as Tom Riker
Richard Poe as Gul Evek Journey's End Preemptive Strike	Armin Shimerman as Quark Firstborn	Denise Crosby as Tasha Yar Yesterday's Enterprise All Good Things..., Part I All Good Things..., Part II