Yep. Real Jedi characters from the Arena battle sequence. In fact, Sarrissa Jeng with the monk-like haircut is the young female Jedi who loudly screams "YAAAAAAAA" as she slices enemy droids apart with her lightsaber.
These are all from the actual film, it's just that none of them had lines except for the one Sarrissa Jeng scream. Roan Shryne is the Jedi Knight who tosses lightsabers to Anakin and Obi-Wan so they can free themselves from their Geonosian shackles and chains.