On actor join room
-> Create Playersprite
-> Set a 'Playersprite.variable' to Photon.ActorNr (Now each character have the Photon ActorNr)
-> If Photon.ActorNr = Photon.MyActorNr -> Set a Boolean instancevariable 'Local' to: True (Set's your character to Local)
You character will have the Local Boolean, other characters will have Photon.ActorNr as variable.
Hope that helps.