Dez dresses as Austin Moon for the Halloween party Jimmy Starr organized. He also spent time at the party helping the rest of Team Austin retrieve an angry text message sent by Austin, and hunting for ghosts at the house where the party was being held. Taylor Swift became an unfortunate victim of his ghost-hunting obsession.
Ally thinks that he and Trish were dating. He auditioned to be Austin's back up dancer by tap dancing, but he was also judging the auditions for Austin's backup dancer.
Dez jumped off of the bridge along with Austin, Ally and Trish.
He originally gave Trent information on how to make a video like Double Take, but he came up with a plan to trick and get revenge on Trent. Dez helped create the cologne which was used by Trent, which caused him to be swarmed by bees. Despite Austin and Trent being rivals, Dez found a small friendship with Dex, who was supposed to be him when Trent was impersonating Austin's life.
He traveled with Austin, Ally, and Trish to New York for Austin to perform on Times Square. Later in the episode, the gang along with Jessie and the Ross kids watch a movie in the screening room in the Ross Penthouse and Mrs. Kippling is acting romantic with Dez. Later when the Ross family is in Miami, Dez and Kippling do a bunch of stuff together. It is later revealed in the episode that Dez had a pet rat from New York City, which is the only reason that Mrs. Kippling was hanging out with him. She attacks him one minute later.
He comes up with an idea for the next Austin music video: a love story. But when he casts Kira (a girl with terrible breath) as Austin's girlfriend, things go terribly wrong. Despite Austin's begging in the beginning, he refuses to replace and re-cast Kira.
Dez directed a #1 video which was No Ordinary Day. It's revealed that he enjoys wrestling. He is the one to inform Ally and Trish that they planned for the park date wrong since he's seen Kira's myspace page. He helped create a distraction while Ally and Trish tried to swap the baskets. At the end of the episode, he's seen watching the silent romantic movie while the sprinklers are going on.I Think About You" to each other leaving weird looks on the now-official couple of Auslly.
After using the typewriter, Dez buys at the antique shop Trish works at, he figures out that the typewriter possesses magical powers. While he is working on the short story, he encounters his rival, Chuck, and accidentally reveals to the latter boy that the typewriter is unlike any other. Chuck then steals the typewriter, to which Dez and the rest of the gang experience strange ordeals - his fingernails grow super long, his churros always end up turning into sticks, he swaps bodies with Austin, he swaps bodies with Ally, and his head is turned around. After he confronts Chuck, Chuck reveals that the only reason he still holds a grudge is due to the fact that Dez stole his original look. Dez refuses to apologize to Chuck, and he inadvertently gives Chuck ideas to use against the gang. After Chuck retreats to get away from the car that crashes into Sonic Boom, Dez and Chuck battle for possession of the typewriter. Dez wins, and he shrinks Chuck to prevent Chuck from doing such actions again. At the end, it is revealed that the majority of the episode is actually Dez's short story. When he is retelling the Mini's worker the story, he reveals that next week, he is competing in the cake baking contest. Chuck is in it too, and the two once more have a pun battle- unlike the first one, where Chuck won, Dez wins this one.Chuck, returned in this episode as his main competition for the prize. Dez, however, had confidence in taking home the 1st place medal due to the "Your Mommy" spice that would make his chili super-hot. Nelson appeared to be the chili taste-tester for Dez. After Nelson considered the chili not hot with only a spoonful of the spice, Dez dumped the entire batch of the spice into it, which made Nelson run home, crying for his mom. After Ally and Trish came back, Dez lied to everyone at the cook-off and told them that there would be a $1000 prize for whoever first found the necklace. After he spotted the only remaining bowl of chili (with the necklace too), he and Chuck fought for possession of the chili bowl. Dez got to it, which meant that he got Ally's necklace back AND won the chili competition by default.
In this episode, Dez fell head over heels in love with Glamour Kitty, one of Ally's co-workers during her time as a Stray Kitty. He purposely dressed in a tuxedo and bought her expensive gifts since he thought that being glamorous would make Glamour Kitty fall in love with him. At the end, however, it is revealed that the actress that plays Glamour Kitty is not like that at all--she dresses in weird clothes and enjoys Zaliens movies--and she tells Dez that they wouldn't work since they're from two different worlds. Dez doesn't take that for an answer, though--he chases after Glamour Kitty's actress, begging her to wait.
In this episode, Dez becomes an honorary member of the Pioneer Rangers troop that Trish leads; he wants to earn the merit badges that he never earned as a child after he bathed in a bird bath. He also gives Austin the inspiration for his (terrible) song; Dez shows Austin the motto for the Pioneer Rangers. He is the first one to notice the big bear at the interview/camp-out.Jimmy Starr an alpaca; both times, he fails. The Ally Way. Meanwhile, he attempts to relax with Austin since Austin's week is not busy.
In this episode, Dez, along with Trish, are dedicated fans of the TV show Crime & Judgment. They watch all 182 episodes in 4 days. His briefcase is swapped with Val's. He, along with Trish, try to figure out who the song Steal Your Heart is about; he has evidence to suggest that it could have been Kira, the model, or Brooke.
In this episode, it is revealed that Dez's dad is an inventor since Austin and Dez walked in wearing a creation from his dad, called napshirts. He took Austin with him to the International Invention Convention, where Austin found the Tune Pro 3000. Dez was part of Austin's dream as well as the plot to bring the present to the future.Chuck, his enemy, makes the squad as well, he and his foe both fight for a special position.
In this episode, Austin gets Dez his own decked ride. After that, he and Austin try to restyle Jackson Lowe. Jackson then left and took Dez's cart with him.Successes & Setbacks). When Austin and Ally get into a fight, he and Trish plan for them to shoot the scene where they sing You Can Come to Me so that they make up. Their plan succeeds.