Daisy

Daisy is the princess of Sarasaland who appears as a recurring character in Mario games. Her personality is similar to Jessie from Toy Story, with the cowboy notch turned down a little bit. She appears in Mario Party 3 and Mario and Sonic at the Olympics.

Mario Party 3
Daisy is Anne Marie's player chosen character throughout the normal party maps. She wins the Waluigi's Island map.

The game starts when the Millennium Star crashes into the grounds of Princess Peach's castle, where all of the inexplicably composed group of friends were hanging out for the day. Everyone begins arguing over who gets to keep the star. Lakitu suggests a good old game of Mario Party to sort out the conflict, takes them into the toybox, and the game begins!

In Chilly Waters, Daisy is given a Southern accent during a bit and it sticks for the rest of the game. Luigi seems to think that she's attractive and takes every opportunity to team up with her, calling her "the cute new girl". Daisy enjoys scolding Waluigi, telling him that she told him not to do certain things when really she didn't say anything and also chastising him for saying that they didn't know Donkey Kong when they met him in Mario Tennis. Speaking of Donkey Kong, Daisy is pretty mean to him right off the bat, saying she hopes that he gets hit by a car after he wins a mini-game. Millennium Star gives her a pity star because he feels bad for her, and says that he thinks she should be doing better given that she's royalty.

In Deep Bloober Sea, Bowser tries to hit on Daisy saying that she looks "like Peach but even more yellow", which makes her understandably uncomfortable. Later, in Spiny Desert, Bowser gives her 50 coins when she lands on his space, so he's clearly still trying to win her over, though he frames it as "feeling bad for her" because she has no coins and no stars.

Story Mode
The fact that she has a father who she mentions is fixated on by the players. It is said that her father used to have her catch chickens, and said that it was the only way that she (and their family) could have breakfast. She was also apparently unaware that chickens laid eggs. She was said to live on a farm, but it was implied that she was actually raised by a pack of animals, possibly wolves. In later episodes of the playthrough, it was established that she is dating Princess Peach and is oblivious towards Waluigi's affections for her.

Mario and Sonic at the Olympics
Daisy does not actually participate in Mario and Sonic at the Olympics, because a robot taking her likeness competes instead. This was made no more apparent than in the 200m freestyle relay, during which the Daisy robot was unresponsive for several seconds while on the diving board, costing Korea yet another medal.

Trivia

 * Daisy is canonically the hottest Mario character.