Peter Bryce was a Starfleet officer in the 24th century. He was a flag officer with a rank of commodore in 2364. In that year, he was in the Starfleet Advanced Technologies Division. Sometime in that year, he sent an order about the Andor/Rigel subspace relays to Captain G. Harry Stein of the USS White Sands. (TNG: "Conspiracy", okudagram)
This character was only mentioned in writing.