The White Rabbit is a character from Lewis Carroll's 'Alice in Wonderland'. He serves the Queen of Hearts and is one of her most loyal servants. He also appears in DIsney's Alice in Wonderland and Tim Burton's Alice in Wonderland as an ally.
Disney's Alice in Wonderland
The White Rabbit was first shown walking peacefully without a care in the world, until he looks at his watch and realizes he is late for announcing the Queen of Hearts. The White Rabbit is the Queen of Hearts' announcer, but is not credited as a villain. He then rushes to his Rabbit Hole, with a young girl named Alice following behind as she is curious to know what the occasion is. The White Rabbit notices her, but tells her he has no time for chatting because he's late. After entering his Rabbit Hole, Alice enters as well and is taken to the world of Wonderland.
She proceeds with chasing the Rabbit but loses him after meeting two goofs named Tweedle Dee and Tweedle Dum. After leaving them, she stumbles upon a pink home. The White Rabbit appears and claims it as his own. He then confuses Alice for his maid, Mary Ann, and orders her to fetch his glove. While looking for the gloves, Alice finds some sweets, and takes a bite. The sweets begin to make her humongous in size. The White Rabbit believes her to be a monster, and rushes off to get help. He finds Dodo, who plans to burn the house down to get Alice out, much to the Rabbit's despair. As the house begins to burn, Alice eats a carrot from the Rabbit's garden, and shrinks to the size of an insect.
Alice loses the White Rabbit once more, and begin to ask the locals for help on finding him. She meets the Cheshire Cat who informs her to ask the Mad Hatter and March Hare. She does so and the Rabbit actually appears. Before she can ask the question, however, the Mad Hatter grabs a hold of the Rabbit's watch and finds out why he's so late: the watch is "two days slow." So the Mad Hatter dips the watch in tea and opens up to discover – with a salt container as a lens – the problem: the watch is full of wheels. As a result, he takes out many wheels and springs with a fork in his attempt to fix it. The Rabbit watches with horror and tries to intervene to save his watch, but to no avail. The Mad Hatter adds ingredients, with a little help from the March Hare and (unwittingly) the Rabbit, to the mixture: the very best butter, tea, two spoons, jam, mustard (which is rejected, since it's too silly for him), and lemon. Thinking that it's done the trick, he closes the watch. Then, the watch goes haywire and spits out springs and wheels all over the place as it moves across the table. The March Hare uses a mallet to crush the "mad watch" bringing tears to the Rabbit. After hearing that the watch was an Unbirthday present, the Mad Hatter and March Hare wish him a "very merry Unbirthday" and get him on the run.
Alice then finds an entrance to the kingdom of The Queen of Hearts, where she also finds the White Rabbit, and the reason he was in a hurry. There, the Cheshire Cat repeatedly get her in trouble, resulting in a trial. At the trail, the White Rabbit is present, and the Cheshire Cat gets Alice in trouble again, this time, resulting in a climactic chase.
At the end of the chase, Alice suddenly wakes up, and realizes her entire adventure was nothing more than a dream.