Communications Research Center personnel
Personnel present at Starfleet's Communications Research Center, many of which were  associated with the Pathfinder Project.

Named 
 Reginald Barclay
 Pete Harkins
 Owen Paris

Unnamed

Admirals 1 
These two vice admirals accompanied Admiral Owen Paris to Commander Pete Harkins' presentation of the MIDAS array in 2376. ()

Admirals 2 
These admirals, one of which was a vice admiral, joined Admiral Owen Paris in overseeing the Pathfinder Project at Starfleet's Communications Research Center in 2378 when Borg sphere 634 suddenly emerged from a transwarp aperture less than a light year from Earth. He and the others watched as the sphere was abruptly destroyed by the  which had also returned through the aperture. He and the others welcomed the Voyager crew home soon after. ()

Field trip class 
These children toured the research lab of the Pathfinder Project in 2377, with Commander Pete Harkins showing them around. According to their teacher, they had been studying some of the Delta Quadrant species that  had transmitted information on. These included the Talaxians and the Ocampa, the examples two of them gave when asked by Harkins. 

Before they could give any other answers, Reginald Barclay interrupted their tour to suggest to Harkins other ways that a hologram of himself could have disappeared. Harkins then dismissed the students into the keeping of an ensign so that he could have a private word with Barclay. ()

Security guard 

This security guard was under the command of Pete Harkins. He ordered the guard to arrest Reginald Barclay whom he had ordered to stay away from the Midas Array because Barclay had become obsessed with contacting Voyager. The guard was told to stun Barclay if he had to. The guard was stopped by Barclay when he ran into a holoprogram of Voyager and erected a force field around the guard. ()

Technician 

This technician interrupted Admiral Owen Paris as he was about to arrest Reginald Barclay for disobeying orders to stay away from the MIDAS array. Barclay was trying to contact Voyager which Starfleet believed was not possible. The technician then informed the admiral that they were receiving a transmission from Voyager. ()

Technicians 1  
These technicians worked on the Pathfinder Project at Starfleet Command in 2376 and witnessed Reginald Barclay's try to convince Admiral Paris about his way to contact Voyager. ()

Technicians 2 
These four technicians were assigned to the Pathfinder Project in 2378. They worked in the mission room of the Starfleet Communications Research Center in 2378 when the Voyager returned home and defeated the Borg. ()

Personnel lists
Unnamed Starfleet personnel (24th century)
Unnamed Humans