The High Command are the head agents of F.O.W.L. in Darkwing Duck. It seems that throughout the entire series, they never left their certain area (possibly F.O.W.L. headquarters). Also, they were always hidden in the shadows and their true names were never mentioned during the Darkwing Duck series run at all.
The ones that usually talked were the one with a big head and fangs and the one with a hunched back. The one wearing the over sized hat never talked. It also appears that they were anthropomorphic birds.
All members of F.O.W.L are shown to fear them, as they appear to be prone to violently dispose of those who upset them, including Steelbeak's predecessor, who was put through six trash compactors.