Captain Walker Keel: Commanding Officer, U.S.S. Horatio. Suspected that Starfleet had been co-opted by a secret alien influence late in 2364. Brought Captains Rixx and Tryla Scott into his cabal, unaware that the latter had already been turned. Keel grew more paranoid and didn’t trust his first officer or his chief medical officer. Arranged for a secret meeting with Rixx and Scott and brought along Captain Picard. After confirming to his best of his abilities that Picard was still himself, he voiced his concerns to his old friend but without firm evidence, Picard wouldn’t go any further. Not long after the Horatio was destroyed, evidence suggested it was sabotage. There were no survivors. 

Appeared in TNG’s “Conspiracy” 

Admiral Gregory Quinn: Starfleet Admiral in the Operational Support Services Division. Used the Enterprise’s layover at Relva VII to conduct a snap investigation, along with Lt. Cmdr. Dexter Remmick (with the Inspector General’s Officer). The investigation and the interviews were a front to make sure the Enterprise crew and her Captain had not been co-opted, believing forces either internal or external were looking to destroy the Federation from within. Quinn offered Picard the promotion to Admiral and the position of Starfleet Academy Commandant hoping to keep him close while also believing he was the best man for the job. Picard declined and Quinn let the matter drop. 

Some time after Relva VII but before the destruction of thestarship Horatio, Dexter Remmick infected Admiral Quinn with a mind controlling parasite. Admiral Quinn became one of many unwitting aides in an alien conspiracy to take over the Federation. 

Quinn was on Earth when the Enterprise returned following the destruction of the Horatio, along with the Admiralty invited Picard to dinner at Starfleet Headquarters, with first a trip to the Enterprise where he misdirected Captain Picard about his previous fears but only drew attention to himself. Quinn attempted to infect Riker with the parasite, attacking him Only the intervention by an armed Dr. Crusher was Quinn subdued. Medical examinations revealed the alien parasite which had attached itself to the base of his skull and taken complete control. When the Remmick-Queen creature was destroyed, his parasite also perished leaving no trace. He was given a clean of health. 

Appeared in TNG’s “Coming of Age” and “Conspiracy”

Star Trek: The Next Generation 1x25 - Conspiracy

Every Episode of Star Trek The Next Generation:
↳ Conspiracy

You’re Number One at kicking old men in the face.

Conspiracy