I think it's a Tyco. It's green inside the boiler shell.The Casey Jones Ten Wheeler set was an old Bachmann set. While the locos looked like yours, they were one solid color, so you're likely looking at someone's custom paint job.
That's not a model of a real locomotive anyway, so I'd say just pick something and run with it.
My only concern with the Riv model is the overly deep flanges on 382; not able to traverse anything lower than archaic code 100 rail and old horn hook couplers..Rivarossi probably has the best representation of that locomotive, at least they got the color, turrets, and bell right. Probably the best sales record too, No problem finding them. The wheel arraignment on your model is way off from what old Casey's 382 had.
My vote would be for Illinois Central. Lot's to choose from there.