Ok my opponent has the characters out. Rolls one with force speed and rolls special. My question is this. He resolved special gaining additional actions. Rolls his other character with force speed rolls damage and rolls special. Can he claim the damage as his last force speed action and then claim the newly rolled force speed now that it's in the pool? Or does the dice have to be there in the pool when declaring specials.

Alternatively if there are multiple specials with force speed in the pool would he have to resolve all the specials prior to taking his additional actions. Or could he resolve force speed. Do stuff. Then resolve the other specials.

If I understand your question, he has already rolled a character with FS and got a special. He resolves specials for his action and resolved the FS special. Then he took one of his 2 actions to roll in another character with FS and got a special? If this is the case he may resolve the FS special to gain 2 additional actions but it will use up his 2nd action from the original FS.

You can resolve multiple specials as a single resolve special action. If you resolve a single FS special then take another action like resolve melee damage, it will cost you an action to take another resolve special action. If you have 2 FS specials in your pool an choose to resolve both in a single resolve special action you will have 4 more actions you can take.

I hope that makes sense and answers your questions.