I think you answered your own question, Doug. Adding Capt. Picard as an ally is Ally 3 (Capt. Jean-Luc Picard).
If this is being done in character creation, you can have the PC to use his free edge to cover the upgrade to Ally 3 (or, you can have him take a Flaw to cover it, and allow him to have his free edge for whatever he wants).
Davy Jones
"Frightened? My dear, you are looking at a man who has laughed in the face of death, sneered at doom, and chuckled at catastrophe! I was petrified."
-- The Wizard of Oz