Haden
Vice Admiral Haden was a 24th century Starfleet Command flag officer based at the starbase on Lya III. 

In 2366, Haden was Starfleet's liaison officer between the Federation Council and the  regarding the defection of Romulan Admiral Alidar Jarok. He instructed Captain Picard several times via subspace communication. ()

The next year, he confirmed to Captain Picard that Cardassian allegations of a Starfleet starship attacking Cardassian installations were indeed true and that this ship was the  under Captain Benjamin Maxwell. He ordered Picard to stop Maxwell from provoking a new war at all costs, as the Federation was not prepared for a sustained conflict. In contact with the Cardassians, he agreed to allowing observers on the Enterprise for safe passage into Cardassian territory. ()

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Humans
Starfleet personnel (24th century)
Starfleet command personnel
Starfleet flag officers