Admiral Simons is the Starfleet flag officer who orders the Enterprise to carry the mediator Ves Alkar to the Rekag-Seronia peace talks in the sixth-season episode Man of the People.
Admiral Simons appears in Man of the People. After the transport ship Dorian comes under attack near Rekag-Seronia while carrying Ambassador Ves Alkar, the Enterprise takes the ambassador aboard, and Simons instructs Jean-Luc Picard to complete the journey and see that the talks go ahead.
The admiral stresses how important the negotiation is: the civil war on Rekag-Seronia is disrupting a Federation shipping route, and Alkar is regarded as the one mediator both factions will accept.
Those orders hang over the rest of the episode, since Picard must weigh the success of the peace talks against the discovery that Alkar is destroying Deanna Troi to maintain his own serenity.