Tony Rydinger

Anthony "Tony" Rydinger is a minor character in The Incredibles and a major one in its sequel.

Personality
In the first film, little was known about Tony's personality, but he acted rather shy and stuttered a lot when he asked Violet out on a date.

In the sequel, Tony is shown to be a kind and approachable teenager, despite his popularity at school. He is also honest, recalling every detail truthfully about discovering Violet's identity as a superhero and the events leading up it when Rick Dicker was questioning him.

Even after losing his memory of Violet, Tony asked her politely if he knew her during their confrontation at school, and genuinely responded with concern after she sprayed water out of her nose upon seeing him at the Happy Platter, showing that he is genial to people he barely knows. Despite those awkward interactions, Tony was still open to become Violet's friend and accepted her date invitation.

The Incredibles
Tony is a popular student of Western View Junior High on whom Violet Parr has a crush. She tries to talk to him, but is too shy and disappears whenever he looks at her. This is seen in the beginning of the film when Rydinger is leaving with his posse and briefly catches a glimpse of her before she disappears.

At the end of the film, he finally notices Violet while attending Dash's track meet in the epilogue to the film, and invites her to go to the movies. He does so with a stutter, and Violet shows she has overcome her shyness by finishing his sentence. Rydinger and Violet then settle on going on a date that Friday.

Incredibles 2
Tony returns in the sequel with a more pivotal role, namely in Violet's side of the narrative.

Just when it looks like they might have a future together, or at least a first date, Tony ends up getting caught in the Parrs battle against the Underminer, which leads to him discovering Violet's true identity as a superhero. Violet tries to talk to him, but he runs away.

When he and Violet were supposed to have their date, he failed to show, leaving her heartbroken. Violet later confronts him at school, but he seemingly didn't know her. While initially believing Tony was only pretending he didn't know her, Violet later deduces that her father had Dicker erase his memories of her in order to protect her secret identity, effectively bringing their entire relationship back to square one.

Tony later serves Violet and her family at 'The Happy Platter' restaurant, where he works part-time. Her father hoped that this would allow them to start over. However, this instead caused the shocked Violet, who didn't know about any of this, to spray the water she was drinking out of her nose and embarrass herself in front of him. The rest of Violet's family then proceeded to introduce themselves to him.

After the Parrs successfully stopped Evelyn's plan and superheroes were legalized again, Violet builds up the courage to ask Tony on a date again, which he accepted. Unfortunately, while Violet's family were bringing them to the theater, they encountered two cars engaging in a shoot-out. In response, Tony gets pushed out the car by Violet and she pleads him to save her a seat before she and her family take off to stop the threat.

Trivia

 * Tony received an updated appearance in Incredibles 2, appearing younger, slimmer and more boyish.
 * According to Rick Dicker, Tony's family owns The Happy Platter, a restaurant featured in Incredibles 2.