The Mystery Cartoon Character Game, ongoing.

The only character I thought of is already on the list. I'll keep looking.

I'm thinking Oswald the Lucky Rabbit.

And you are correct - it is Oswald!

1) Originally created by the Walt Disney studio for Universal Studios in1927, the character was taken over by Charles Mintz's Winkler Studios (along with most of Disney's staff) in 1928. Universal took direct control of Oswald in 1929, setting up their own cartoon studio headed by Walter Lantz and Bill Nolan. (In 1935 Lantz persuaded Universal to let him take over the cartoon studio, and it became Walter Lantz Productions.) The Walt Disney Co. acquired the rights to Oswald in 2006.

2) Oh no! I was wrong! Lantz was slow to switch to 3 strip Technicolor - Disney's exclusive agreement meant other cartoon studios could not use it until 1935, for films to be released in 1936, but Universal were happy with black and white and it was not until 1939 that Lantz felt he needed to move into colour. The first full colour Oswald (for which he was redesigned again, from Manuel Moreno's white rabbit of the 1935 Case of the Lost Sheep to the light brown version that continued in the comics) was also his last - The Egg Cracker Suite 1943. BUT... I had failed to notice that in 1935 Lantz made some cartoons in 2-color Technicolor - and one was an Oswald short, Springtime Serenade. So clue 2 was wrong - for which I can only apologise, and hang my head in shame!

3) Although originally a married man (Poor Papa, the first Disney Oswald short, initially rejected by Universal and eventually released a year later) Oswald was redesigned as a younger character, and often had a love interest. His first girlfriend was another rabbit (not named in the films, but known as Fanny) but in The Banker's Daughter his love interest is a cat, and she continued to appear in subsequent shorts (she is now officially named Ortensia).

Back to you, Glow!

Thanks, I wasn't initially certain it was Oswald at first--especially because the second clue did throw me off after I looked him up and I wasn't sure if 3 studios actually produced Oswald shorts.

However, that third clue was the one that made me fairly certain it was Oswald.

Anyhow-- I think this one will do.

1. I'm the title character of a well known children's song.
2. However, this version is a lot jazzier.
3. My wife chops an awful lot of wood.

My search for a match turned up nothing.

I'm stumped, too. Let's see what the next clues reveal!

Very well.

4. I play a mean piano
5. I'm a farmer
6. My wife does not appreciate my band, and neither does my son.

Emeraldisle has the answer: E-i-e-i-o! It's Old McDonald!

Sorry for not responding earlier, I actually saw your post, but had no time to elaborate. Yes, it's Old MacDonald from the Disney short "Jack and Old Mac" (which are actually two shorts strung together.)
1. The song is "Old MacDonald had a Farm."
2. In this case, it's "Old MacDonald had a band" and is sung in a catchy, jazzy tune.
3. Throughout the short, Mac's wife is chopping wood--the piles become quite large after a while.
4. Self-explanitory.
5. Old MacDonald is a farmer by trade.
6. We can clearly see that Mac's wife does not care for his band as she takes her frustration out on chopping wood throughout the short and wears an frown. A trio of singers and a little boy sing the song, but the boy does it rather begrudgingly, having to constantly be bopped on the head by one of the singers to get him to sing. The boy must be MacDonald's son as he follows the irrate wife as she trudges into the house to smack her husband with a rolling pin.

Thanks, Glowworm. Now here's a true no-brainer:

1. We're a brotherly trio.

2. Our family also consists of uncles, cousins, and in-laws.

3. We're recruited by a couple of snooty marsupials to dispose of a teeny-tiny object.

Guess this one wasn't as easy as I thought. So here are the last three clues:

4. We literally specialize in monkey business.

5. Like all the other animals in our story, we refuse to believe a pachyderm's claims, until the very end.

6. The book on which both our animated special and movie are based is now sixty years old, and was written by the same guy who immortalized an unusual cat.

I think I've finally figured this one out--(I've never actually seen or read this one) however, I'm sitting this one out unless I absolutely have to answer this one.

My research is incomplete, but I can point someone in the right direction, I believe:
The 2008 production by Blue Sky Studios is Horton Hears A Who. Horton the elephant is certain that something sentient is living in a mote of dust upon a clover, but nobody believes him because the concept is so preposterous. The snooty kangaroo voiced by Carol Burnett and her son are determined to break Horton of his fixation by destroying the clover and its dust mote once and for all. I can't rightly name the monkeys, though, that are recruited for the disposal mission.

The monkeys are the Wickersham Brothers, so I'm going to say that is the answer.

You got it, Saltyboot. So take your well-deserved turn. You've earned it. Good job.

Thanks! I have one in mind but can't put the clues together yet. I should have it up later tonight.

Okay..... here ya go.

I am a performer, as well as a leader.
I came close to executing the main characters.
I die in the original story.

I'm clueless again. Hopefully, another player has the answer.

Heads up, brick incoming ...
The Ringmaster from the Loonatics Unleashed episode The World Is My Circus. Though his name and title are both Ringmaster, he's revealed to be the face of the evil operation; Otto the Odd is the mastermind behind the facade. Once the Ringmaster was mutated into a hideous monster, he tried to crush / skewer the heroes, but didn't succeed. The episode has Ringmaster and Otto captured by Tech Coyote's gluco-gel; possibly the original script called for Ringmaster to be destroyed in the fight.

**Sees brick coming and ducks**
Nope, not the Ringmaster. Actually, I have never seen a Loonatics episode.