Cavalry and light infantry are one way in which I'm trying to add 'National Characteristics' to my various Greek contingents. At the moment I'm working my way through basing some of these.
Over the years the Athenians were recorded as using both Thracian mercenaries and Scythians, although the Thracians hired for the trip to Sicily arrived too late and the Scythians were hired as a 'police force'. So these two groups were obvious ones to add and I've supplemented them with mercenary Greek archers - probably from Crete.
The Scythian horse archers have yet to be rebased and are also a lot nicer than the photo suggests!
Apart from hoplites I've given the Spartans a unit of heavy cavalry as 'bodyguard' - the hippeis - though in reality these would have acted as mounted infantry. For light infantry I've given them 4 units of low quality Helots, 3 of light javelins, 1 of slingers.