
Alpha currently has the ability of shadow-puppeting which is really just a fancy term for turning your character into a living puppet. He is capable of controlling their movements to his own will. With enough mental force, anyone would be able to break free. Though please let me know here if you have an ability that prevents your character from being controlled in such a matter.
As for Alpha himself, he is a composite event -- a multiple personality (49 to be exact) -- which basically means that his mind had been wiped by the technology from the Dollhouse universe and filled all at once with every single personality he had ever been programmed with. Needless to say, he's more than a little crazy. But because his mind was so overabused, he will have a resistence to a lot of mental things, especially mind control.
And speaking of mind control ~ for further plot purposes he may look to rebuild the technology for wiping minds and imprinting them with different personalities. Should you ever be interested in allowing your character to be a test subject for this, please sign up here. I promise that their original personality would be kept in tact on a wedge and able to be restored eventually :].