Based on an above comment, I checked out her 2 episodes from Firefly. Check out the episode called "Trash". It's her vs. the male star, so no f vs f action, but she shows real fighting capability - kicks, punches, taking and giving. I think she can handle herself - and would love to see her tangled up with a similar size female star in a long, grueling catfight. She'd make a great, tough saloon owner in a raunchy western!