FASA Games, Inc.

The leopard isnt willful(1) but all of the similar creatures are: tiger, lion. It seems like an omission, since on one hand they r otherwise statistically nearly identical otoh i dont know of anything that might indicate lepoards r especially susceptible to taming compared to other big cats.

And, ofc, the more exotic felines are all willful too: crojen, felux, troajin, etc...