Yeah I thought so too. I think any spartan with a green-ish look to them should be Sage, Olive looks too bright.
Also, for Kelly, I believe she had the same armor as Master Chief (CE). If you look on the cover of Halo: The Fall of Reach, all the spartans are wearing MJOLNIR Mk. V armor. Halo: Legends' 'The Package' jazzed up everyone's armor a bit, including Master Chief's, and probably shouldn't be used as a reference if the characters can be pulled from other sources more true to the Halo universe.
[Edited on 06.05.2011 12:50 AM PDT]