Avatar The Last Airbender: Toph Beifong is a unique example, in that she's a prepubescent girl. When she found out that the play chronicling their adventures was portraying her as a burly man who sees by screaming, she was ecstatic.
THE BOULDER takes offense at not being included in this list despite being a Captain Ersatz of The Rock, and he'll show it by burying you UNDER A ROCKALANCHE!
In Sequel SeriesThe Legend of Korra, this is the demeanor of new Avatar Korra, who the creators designed to be as unlike her Martial Pacifist predecessor Aang as possible. She's the Water Tribe's answer to Toph...with all four elements at her disposal.
The version of AQUAMAN (yes, spelled in all caps) in Batman The Brave And The Bold. His voice has been known to spontaneously develop an echo. Outrageous!
If Rath is any indication, then the Appoplexians from Ben 10 Alien Force is a race of Boisterous Bruisers, who talk like Randy "Macho Man" Savage!
Ben 10 Ultimate Alien just loves this trope. We have Kevin Levin, Ben 10,000, Cooper Daniels...
Ben is this at any age, especially when he first got the Omnitrix and his default strategies seem to be Attack! Attack! Attack! and You Fight Like a Cow. Part of his Character Development is learning when to be smart about his battles, though he still loves fighting bad guys and telling them how much they suck compared to him.
Let me tell you something, TV Tropes! Rath lives and breathes this trope!
The three mice from Biker Mice From Mars, though Vinnie was the most boisterous.
Captain Planet himself. The guy loves to make (bad) puns and laugh while fighting pollution!
And Wheeler too, as the most Hot Blooded of the group.
Lago from Captain Simian And The Space Monkeys is a Space Pirate captain who originally wanted to betray the Primate Avengers but later switched to their side. He is also a Large Ham who speaks in a loud, faux Italian/Spanish accent.
Rock n' Roll. A heavy metal bassist and surfer turned machine gunner, he didn't last long in the regular Army because the dress code really grated on him. They made him wear a shirt.
Bazooka, too. His hard-partying ways got the best of him, and in the comics, when the GI Joe team was brought back together, he was the only one who couldn't pass the physical requirements because he'd become kind of really fat.
Gung Ho, one of the toughest and most badass of he Joes, has this reputation as well. He's Cajun.
And Wild Bill. Yeeeeeeee-HAAAAAAAA!
We'll pretend that Roadblock's omission was due to him gettin' busy in the kitchen!
Hawkgirl in Justice League especially in the Christmas episode "Comfort and Joy".
Rainbow Dash from My Little Pony: Friendship Is Magic manages to pull this off while being an adorable pegasus. Loud, obnoxious, lazy and possessive of an enormous ego, give her a target or a threat to her friends and she will lay right into it with enthusiastic violence and undeniable courage. She tends to give everyone a hard time, especially if she perceives you as an "egghead" or wimp, but accepting her insults and hyper competitive behavior with dignity and good humor will win you a friend who would protect you with her life.
Princess Bula from ReBoot is a female example of this trope.
The Big Knights: "Sir Boris, finest swordsman in the world, and his brother Sir Morris, not the finest swordsman in the world, but the most enthusiastic!" Their approach to more or less any problem is shouting and smashing things.
In Transformers, Sideswipe is described as being nicer than his brother Sunstreaker, but every bit as fight-happy.
Captain Silver from Treasure Planet, an alien of the Ursid race, certainly counts. He's huge, built like a bear with a heavy accent, enormous hands, is always jolly and jovial until he reveals himself as a pirate and angrily attacks Jim, Doppler and Amelia with his crew, but then turns back to his kind self after saving Jim out of fatherly love and loves food, in fact he is the ship's cook, and at one point is seen regaling the rest of the crew with stories over tankards of drink, enthusiastically acting out parts of it and using his mechanical arm to provide shadow puppets of the events. He can certainly hold his own in a fight as well, showing a mere fraction of his strength in nearly crushing the spider-alien Scroop's claw when he threatened Jim, and when threatened by a black hole, he is seen with Jim, using his own body to not only anchor Jim to the ship better, but to shield him as well.