Ajax the Lesser, son of Oileus, the king of Locris. His mother's name was Eriopis.

Deucalion was mortal, a king of the Greek regions of the Northen Opuntian Locris, Malis, Phthiotis and the Thessalian lands.

For their incursion into mainland Greece they first gained the support of cities and tribes in Thrace and then Macedonia and Thessaly, through which they had to pass. They also spread money lavishly around in central Greece and this brought in to their side Thebes, Phocia and other Boeotian cities, Locris, Malis, Thessaly, adding another 40,000 to their army.

The rest of the Persian forces were not allies as they were part of the Persian Empire (Egypt, Phoenicia, Mesopotamia etc), and provided military and naval forces as directed.

Two others were mentioned, Onetas of Carystus and Corydallus of Anticyra, however no acton was taken against them.

Of course, the Thebes contingent was suspect when it was part of the defending force at Thermopylae. This led Leonidas, when the other city contingents were released to go home and the Spartans and Thespians stayed to cover their retreat, to also keep the Thebans as well. His suspicians were confirmed as, when the Persians made their final attack, the Thebans surrendered and were not slaughtered as were the Spartans and Thespians. Thebes fought alongside the Persians against the other Greek cities at the subsequent batle of Plataea.

The use of 'traitor' is dubious - many cities in central Greece went over to the Persian side including Thebes and the other Boiotian cities plus Locris, Malis, Phocia and Thessaly. No one seems to want to call them traitors, so why single out one person from a Boiotian city as a traitor helping the Persians when his whole city and many others sided with them? Makes a good bit of drama I suppose.