The enchanted objects. They don't take kindly to an invasion of their home, and you see why so many of them can be used as blunt object weapons. And then there's Lumiere's flamethrower move.
Beast himself when Belle returns and begs for Gaston to not kill him.
Eric from The Little Mermaid spends a good portion of the film getting jerked around in one way or another, then the sea witch tries to kill Ariel, and he introduces Ursula to Mister Giant Pointy Stick.
Despicable Me, towards the end, when Vector has captured the girls, and refuses to release them, even though Gru gave him the Moon. Gru, who up until this point was doing an OK job, decided to finally step up his game. Going so far as to dodge Vector's defenses, and punch out a shark. Succinctly described by this comment:
For most of Disney's Robin Hood, Little John is a jovial sidekick who makes jokes about Prince John from afar and has to be coaxed into going along with Robin's plans. But when the Prince is about to execute Robin at the tournament, all Little John does is grab the Prince by the collar, point a dagger at his back, and growl: "Okay hotshot, now you tell your men to untie my buddy or I'll..."
In Fun and Fancy Free, Bongo gets like this when he stops being afraid and puts his circus skills to the test to take down Lumpjaw.
In Tarzan Jane becomes a little less useless while she's being rescued from the baboons by having the good idea to open her parasol to bowl them all out of the way. Later on in the movie she's able to swing across a vine to rescue Kala from the poachers. She also gets a few Action Girl moments in the TV series, most notably when prison guards arrive to arrest Hugo and Hooft - she knocks one of the guards down by throwing a chair at him.
Transformers: The Movie, Grimlock transforms ONCE in the beginnning, then is stuck in Dino mode for the rest of the show, for one simple purpose: to provide comic relief as a cute animal. Trouble is, he's a cute BIG DANGEROUS Tyranosaurus Rex, as he reminds us on the Quintesson planet