Rodan is portrayed in this film as a Magma Man whose elemental powers more than reflect his personality as a volatile, aggressive aerial fighter who is easily provoked into starting a fight... or a massacre if it's the human military that instigates him.
When King Ghidorah's right head is trying to free the other heads from Mothra's silk webbing, the head's response to Godzilla creeping up behind the immobilized three-headed dragon is to try and take on Godzilla all by itself.
One of the soldiers who shoots at Ghidorah, Hendricks, is yelling like a maniac all the while.
Rocket from Guardians of the Galaxy is a snarky, aggressive, hard-drinking, ill-tempered Blood Knight bounty hunter who is at his absolute happiest when he's either blowing something up or mowing down enemies with a gun that by rights he shouldn't even be able to lift, and will gladly give anyone who demeans him a mouthful of hot lead. He is once seen casually constructing an explosive charge strong enough to blow up a moonnote When Gamora admonishes him that they're not blowing up moons, he grumbles about her being a killjoy, his plan to rescue Peter and Gamora involves threatening to blow up the ship they're currently being held prisoner on, and his reaction to receiving aforementioned BFG to fight his way out of prison is what can only be described as a "barely restrained orgasm".
In the sequel, he finds a kindred spirit in Yondu, a Ravager leader and Peter's surrogate father with just as bad a temper and who finds equal amounts of joy in unleashing hell on his enemies, merrily mowing down his former comrades after they mutinied and imprisoned him. In fact, pretty much every original Guardian can be considered this, all being career criminals who had to be the toughest or the craziest (or both) just to survive day-to-day.
The Ip Man films have Zealot Lin from the first and Wong Leung from the second. This eventually costs both of them; Leung gets better. Zealot Lin doesn't.
John Rambo definitely qualifies for being Hot-Blooded.
It is readily arguable that most Arnold Schwarzenegger characters qualify...except for the Terminator, who is extremely calm and collected even when he is kicking ass.
Maverick (Tom Cruise) from Top Gun, who likes yanking stunts like the picture-taking with the MiG at dangerously close range and abandoning his wingman for a perfect shot. His ego's writing checks his body can't cash, and it's noted he got it from his father.
...except for the Terminator, who is extremely calm and collected even when he is kicking ass.