The Committee (委員会 Īnkai) are the heads of Seventh Agency. They are an apparent reason for the conflict between Seventh Agency and the World Void Information Controlling Organization due to their detest for the latter. It's unknown if Kokonoe Mercury was a member.
The Committee are first shown in the BlazBlue: Continuum Shift II story That which is inherited. Around 15-20 of the Committee were present at the Seventh Agency Upper Section Board Meeting and later ordered Relius Clover to look at the Machine God: Nirvana that they retrieved during the Event Weapon Dispossession Operation; another event that they orchestrated. The Committee's relationship with Relius Clover is largely ambiguous.
During BlazBlue: Chronophantasma, the Committee released Azrael from stasis after a telephone call from Relius. They gave Azrael the orders to take down Kokonoe and Iron Tager, and to confiscate Ragna the Bloodedge's Blue Grimoire. They put multiple restraints on the Mad Dog so he wouldn't go berserk.