Donald Duck

Donald Duck is the deuteragonist of the Mickey Mouse franchise.

Despite being a protagonist, he's also an antagonist (more accurately considered as an anti-hero) because he is often cruel to his friends, his nephews, and even to lesser life forms such as Chip and Dale and has played antagonist roles often due to his jealousy of Mickey, his abuse towards his nephews, or antagonizing others for his amusement.

His first appearance was in The Wise Little Hen (1934), where he was asked by the Wise Hen to help her plant her corn, but he faked a belly ache to get out of doing the chore and play rather than work, along with his friend who did the same thing. When the Wise Hen sees this, she gives them castor oil, to teach them a lesson. As the hen and her chicks eat the corn themselves, Peter and Donald, with nothing but an appetite, repent with all their might by kicking each other on the rear.

He is shown to have rivals, such as Mickey Mouse, Chip 'n' Dale, Gladstone Gander, and many others.

Personality
Donald's most famous personality trait is his uncontrollable temper. This has gotten him into some tight spots with his relationship with Daisy, as she is easily annoyed by his constant anger issues. However, things always turn out right in the end. Donald's jealousy towards Mickey's popularity sometimes gets in the way of their friendship and causes him to almost be a villain at times because of his angry temper. Although Donald can be loud, rude and selfish, he is extremely loyal and will do anything to help a friend in need. Donald also has an obsession over being Disney's most famous and popular star and also obsessed with money, treasure, gold, etc., which he gets from his Uncle Scrooge, and can sometimes be found participating in a get-rich-quick scheme.

Donald's aggressive nature is a double-edged sword however, and while it at times is a hindrance and even a handicap for him, it has also helped him in times of need. When faced against a threat of some kind, Donald may get frightened and even intimidated (mostly by his nemesis Pete, but rather than getting scared, he gets mad and has taken up fights with ghosts, sharks, mountain goats and even the forces of nature. And, more often than not, Donald has come out on top.

Cartoons

 * In The Wise Little Hen (1934), He fakes his belly ache to get out of doing his chore.
 * In Mickey's Amateurs (1937), he attempts to steal a amateur concert and pulls out a machine gun firing at everybody.
 * He nearly kills his baby penguin with a shotgun after the penguin ate Donald's pet fishes almost crossing the Moral Event Horizon.
 * In several cartoons, he picks on and bullies others (including his friends and small creatures) for his own amusement.
 * He bullies and pranks his nephews Huey, Dewey, and Louie in several cartoons.
 * In Donald's Crime (1945) - (Main antagonist role), He steals Huey, Dewey, and Louie's piggy bank, breaks it, and takes $1.25 to go on a date with Daisy, which makes him feel guilty and works through the night to pay back the nephews, learning a valuable lesson in the end.
 * In Cured Duck (1945), After struggling to open Daisy's window, he throws a massive tantrum and wrecks Daisy's house, which leads to Daisy kicking him out until he controls his temper, after he learns to control his temper, he keeps calm when he tries to open it again, then he laughs at Daisy's new hat which leads to Daisy losing her temper in the end, repeatedly hitting Donald with a broom.
 * In Wet Paint (1946), He tries to kill the mother bird who keeps ruining his paint job on his car but redeems himself in the end when he finds that she has kids in her nest.
 * He picks on Chip and Dale in several cartoons.
 * The most antagonistic thing he did was in Donald's Happy Birthday (1949) where he cruelly forced his nephews to smoke an entire box of cigars (that was a birthday gift for him) and made them pass out but sooms realizes that it was a gift for him and shrinks in embarrassment eventually crossing the Moral Event Horizon.
 * He went psychotic and started chomping on plates and forks and spoons and grabbed an axe to kill Mickey's cow for food.
 * He threw a fish at Goofy and put an anchor on his leg so he would not swim up after being hit with a fish.
 * He is jealous of Mickey and constantly attempts to steal the spotlight from him.
 * In The Nutcracker (1999) - (Main antagonist role), He portrays the villainous mouse king and kidnaps Minnie to make her his queen.
 * In Mickey's Twice Upon a Christmas (2004), He acts selfish on Christmas, he even went as far as to destroys Mousey's display in a fit of rage, after hearing the Christmas Carols from everywhere.

House of Mouse

 * In Big Bad Wolf Daddy (2001) - (Secondary antagonist role), He hires the Big Bad Wolf to perform on stage which he wrecks the House of Mouse club in the process.
 * In Timon & Pumbaa (2001), He attempts to change the House of Mouse to House of Duck.
 * In Gone Goofy (2001) - (Main antagonist role), He tries to get Goofy fired.
 * In Donald's Lamp Trade (2001) - (Secondary antagonist role), He attempts to get revenge on Mickey for calling him "a ham" by bringing Jafar "the lamp" (whom he encouraged Donald).
 * In Donald's Pumbaa Prank (2001) - (Secondary antagonist role), He attempts to stink up the club (encouraged by Pete) by using Pumbaa to fart through the air conditioner but stops after he has a change of heart.
 * In Everybody Loves Mickey (2001) - (Protagonist villain role), He is offended that everybody loves Mickey than him. So he becomes disappointed and reproaches Mickey for a mistake to be loved by everyone and attempts to ruin to him and everyone (encouraged by Mortimer). But he later he has a change of heart after Mortimer insulting Mickey, and kindly reveals himself to all other Disney characters.
 * In Donald & the Aracuan Bird (2002) - (Main antagonist role), He attempts to dart the Aracuan Bird during his performance.
 * In Chip and Dale (2002) - (Protagonist villain role), He attempts to stop Chip and Dale to stole the peanuts, but later their reconciling with him.

Mickey Mouse (2013)
He was at his worse in the 2013 TV series as he became more selfish, rude, and mean to his friends, especially Mickey.
 * In No Service - (Secondary antagonist role), He cheats his way to victory when he and Mickey drew straws and laughed at Mickey when he was naked while Donald was getting lunch for their girlfriends which lead to his comeuppance when he unintentionally showed Mickey's ID instead of his and gets kicked out of Goofy's restaurant with his clothes coming off and gets humiliated in the end.
 * In Tapped Out - (Secondary antagonist role), He selfishly refused to help Mickey win a wrestling match against Pete and just watched as he ate his nachos.
 * In Down the Hatch - (Main antagonist role), He tried to kill Mickey and Goofy when they got shrunken to miniature sizes and trapped in Donald's body.
 * In Bronco Busted, He selfishly abandons Mickey and Goofy in exchange for being treated like a king by the millionaire in the end.
 * In Turkish Delights - (One of the two main antagonists alongside Goofy), He (along with Goofy) was against Mickey's sales of Turkish Delights and tried to get rid of him until the end.
 * In Two Can't Play - (One of the two main antagonists alongside Daisy), He and Daisy cheat in a game of tennis against Mickey and Minnie until they learn to have fun in the end.
 * In Split Decision - (Protagonist villain role), He is always angry too far towards Mickey, but later reveals the angel within thanks to him.

Trivia

 * In the Disney Studios, Donald is often referred to as The Duck.
 * Walt Disney himself referred to Donald Duck as "the problem child" of Disney.
 * Appearing in over 150 theatrically released films and shorts, Donald has the record for most theatrical appearances for a Disney character.
 * He is very similar to Daffy Duck (owned by Warner Bros.), as both are jealous of the top stars of their owned companies (Donald is jealous of Mickey and Daffy is jealous of Bugs), and their main goals is to have the spotlight, but fail repeatedly.