Timmy/Series

Pre-Series
Timmy comes from a family of reputed scientists from Magix and at some point, chose to study at Red Fountain.

Season 1
In Season 1, Timmy showed up for the fist time along with the other Specialistsin "An Unexpected Event", when they came to Gardenia, to help Stella and Bloom. At Alfea, He met the Winx girls and became interested in Tecna. Naturally, he is shy and uncertain about girls. He tried using his expertise in technology to relate to Tecna.

In "Alfea College for Fairies", Timmy along with the other specialists from Red Fountain attended the traditional welcoming ball at Alfea. He and Brandon were the ones who brought out the chest that contained enchanted eggs for the fairies.

Season 2
In Season 2, he was the victim of a prank by Dark Bloom, and later allowed the Trix to leave Red Fountain with its piece of the Codex, devastating Tecna. Tecna later became frustrated with him because he would not talk about other subjects, besides technology. But, they later make up after she gets her Charmix.

Season 3
When Tecna was trapped trying to close the portal to the Omega Dimension, Timmy was grief-stricken but did not give up on her. He told Riven that he could still "feel" her, and invented the machine to look for her. To make the machine recognize Tecna, Timmy had to articulate his feelings and describe her to it. The Winx girls helped him do so. This effort was successful and led to an expedition to rescue her.

Season 4
Like all the other Specialists, Timmy was sent to Earth to protect the Winx girls from the Wizards of the Black Circle. They got closer to the Winx Club girls and helped them rescue Roxy, the last fairy on Earth. In this season, Timmy seems to grow muscular wise, and Riven even comments, "Timmy, you're starting to become really scary!"

Season 5
He along with other Specialists go to Gardenia to meet up with the Winx at the Frutti Music Bar. When an oil platform had an explosion and was set on fire by that, Timmy helped the others to the save workers.

Timmy soon attended the Winx's benefit concert in Frutti Music Bar of Gardenia, even performing some dance moves with the music. After that, he, along with the Specialists, the Winx, and some people of Gardenia, started cleaning up the beach. Soon, Tritannus goes to Earth to find pollution and sent mutants to attack the beach.

He soon joins the others back at Red Fountain. He and others traveled to Alfea to quickly meet up with the Winx and he is with Tecna as always.

He called Tecna later, saying that he "wanted to talk with her, but should have thought about what to say before calling". Tecna then shows him a schematic of the magical archive of Alfea. Timmy knows that she is trying to find the Sirenix book, so he offers his help by writing a code for her. Apparently, the code worked perfectly, so Tecna called back to tell her work status to Timmy. Timmy asked if there are any other problems, but Tecna is sure everything is fine with the program. They, however, do not know that Trix are spying on them and Darcy curses Tecna's phone while two of them are conversing.

He, along with the other Specialists participated in the hover-bike show held in Alfea, and was in Sky and Helia's group, but the Trix turned all of their hover-bikes into lion-like creatures, which were stopped by Aisha, Tecna, Bloom and Sky.

Season 6
In "Inspiration of Sirenix", a party was being held in Domino to welcome the return of a corporal Daphne. Timmy and his friends arrived and were greeted by Bloom and Daphne, unfortunately for him, his stomach was elbowed when Daphne tripped on the stairs. He also helped defend Domino against the Beast of the Depths the Trix had summoned.

In "The Flying School", Timmy and the rest of the Specialists were at Linphea College training with the Paladins and when the Winx arrived, Stella yelled extremely loud in order to notify Brandon of their arrival. Timmy was seen laughing at Brandon when Guru asked who was the one with the "barbaric yell". When Selina summoned the Treants to attack the college, Timmy was there with the others trying their best to defend the school but failed and all were forced to return to Alfea in order to train some more.

In "Bloomix Power", after Daphne had found the weakness to the Treants, Timmy and the others went back to Linphea College and successfully freed Treants.

The Secret of the Lost Kingdom
In the movie, Timmy joins the rest of the Specialists help Bloom to find her parents. They do not have a big part in the movie but are there to help the Winx girls.

Magical Adventure
He does not have a big role in the Magical Adventure movie, but he is a pilot the Red Fountain air craft and helps find the sapling in Havram.

The Fate of Bloom
He appears alongside with the rest of Specialists in Gardenia to help Bloom and Stella. He also accepts the Winx invitation for party and bonds rather well with Tecna. When Trix incites monsters to Alfea, he immediately joins the fight.

Revenge of the Trix
Timmy has a little appearance in this special, this time he helps Sky plan a strategy to enter Cloud Tower as Sky needed to infiltrate the castle for one of its hidden files. Timmy and Sky were unaware that Riven was spying on them. Later, before the Exhibition at Red Fountain began, Timmy gives advice to Sky on his problem between Bloom his feelings for Bloom and his commitment Diaspro.

During the exhibition, Timmy prevents a fight between Sky, Brandon, and Riven, reminding them the dragon show is about to begin. He also witnesses Bloom and Diaspro's aerial fight.

The Battle for Magix
Timmy appears alongside the Specialists, Fairies, Witches and teachers as they fight for the safety of the Magic Dimension against the Trix.

The Shadow Phoenix
He alongside the Winx and Specialists go search for Bloom, who was kidnapped by Lord Darkar.