Hayden and Theo

Theo helped save Hayden and Liam from the Dread Doctors and tried to keep the Doctors from killing her
Hayden felt gratitude towards Theo for resurrecting her and tried to be a loyal packmate
Theo helped Hayden learn to use her Chimera powers
Hayden started pulling away from Theo and the Chimera Pack when it became clear he was just seeking power
Hayden was conflicted about releasing Theo from his underground prison
Hayden reluctantly worked with Theo in order to fight the Ghost Riders

### Ship Name

Thayden

**The relationship between former Werejaguar-Werewolf Chimera/current Beta Werewolf Hayden Romero and Werecoyote-Werewolf Chimera Theo Raeken**

Hayden and Theo first met due to their mutual alliances with members of the McCall Pack, as Hayden and her boyfriend Liam Dunbar had been captured by the Dread Doctors, and Theo helped the pack rescue them by breaking them out of their cell. However, it was soon revealed that Theo was actually working with the Dread Doctors, and the rescue of Hayden from their captivity was all staged to make the McCall Pack trust Theo.

When it became clear that Hayden was rejecting her transformation into a Chimera, Theo, needing her for his plans, tried to get the Doctors to postpone killing her, believing that failures tainted their experiment pool, but they would only agree to hold off until the supermoon before injecting Hayden with an overdose of Modified Mercury. After a brainstorming session with Liam, the two realized that an Alpha bite could cure her of her condition, which coincidentally caused a rift between Liam and his Alpha Scott McCall, who refused to give Hayden the bite out of a fear that it would kill her, further benefiting Theo.

By the time Theo's motives were finally exposed, Hayden had already died of mercury poisoning and was brought to the Nemeton by the Hellhound Jordan Parrish. However, when Theo's plans ultimately failed, he reverted to his back-up plan by stealing the Dread Doctors' Green Serum and using it to resurrect four of the dead Chimeras at the Nemeton—Hayden, Tracy Stewart, Josh Diaz, and Corey Bryant—and starting his very own Chimera Pack to rival that of the McCall Pack.

Hayden, suffering after-effects of her resurrection and not knowing what had occurred during and as a result of her death, was loyal to Theo at first, feeling a great deal of gratitude towards him for bringing her back to life. However, her residual romantic feelings for Liam kept luring her back to the McCall Pack's way of thinking. It wasn't until Hayden had a conversation with Deucalion (who had allowed himself to be captured as part of Scott's plan to defeat Theo) that she realized that Theo's true loyalty was to himself, and that the "Betas" in his pack were only as valuable to him as they were useful in his quest for power. From then on, Hayden pledged her loyalty to the McCall Pack and ultimately became a member in her own right after receiving the bite from Scott while Theo was imprisoned underground by Kira Yukimura and the Skinwalkers.

When Liam proposed bringing Theo back to use his power stolen from Josh Diaz-- electromagnetokinesis—in the pack's fight against the Ghost Riders, Hayden was understandably wary and hesitant, and even tried to stop Liam right before he freed him out of fear that their plan could backfire. In an interesting role reversal, Hayden, upon learning that Theo no longer had Josh's powers, saw him as useless to their cause and proposed they send him back, and was against destroying Kira's katana in case they needed to re-imprison him. However, Theo's knowledge of the Wild Hunt was invaluable to their fight to take back Beacon Hills from the Ghost Riders, forcing Hayden and Theo to become reluctant allies. Their reunion did not last long, however, as Hayden moved away shortly after the Ghost Riders' defeat, leaving Theo, on a quest to redeem himself, to take Hayden's role in looking out for Liam in her absence.

## Throughout *Teen Wolf*

* Season 5A
* Season 5B
* Season 6A

In *Ouroboros*, the pack, Theo included, met at the McCall House after Hayden and Liam were captured by the Dread Doctors from Beacon Hills High School. Theo was waiting downstairs with Stiles when Scott and Malia returned. Scott ignored Theo's greeting and went straight upstairs, where Lydia and Mason were watching the newest Chimera, Corey Bryant, read The Dread Doctors *novel in order to trigger his memories.*

Scott, deciding that they didn't have time to wait, pierced the back of Corey's neck with his claws and performed the Alpha Werewolf Memory Manipulation ritual on him to try to figure out where Corey was taken to be experimented on by the Doctors, believing that Hayden and Liam had to be there. Theo watched curiously as Scott delved into Corey's memories, eventually figuring out that wherever their lair was, it was somewhere in the Underground Tunnels.

Scott, Malia, and Mason decided to go to the tunnels to try to get a scent and find Hayden and Liam, while Theo elected to stay back in case the Doctors showed up. Since Theo was secretly working with the Dread Doctors, he already knew where Hayden and Liam were being held, but since he had no way of explaining how he knew it, he continued to question Corey with Lydia in hopes of getting the confirmation he needed to prove himself to the McCall Pack.

After questioning Corey (including threats of Lydia's Banshee powers being able to predict his death), Corey remembered being held in a basement of an abandoned house with a wall that looked like a bomb went off next to it. Theo recognized the description as being similar to that of the house Jordan Parrish was called to on a police run where he was attacked by the Werewolf-Garuda Chimera, Belasko, asked Lydia if that was the same house, which she confirmed, leading Theo to leave to go rescue Hayden and Liam without telling the others, wanting to earn their favor and use his position to start to turn Liam away from Scott as part of his long-term plan to steal Scott's powers and pack from him.

Theo eventually made it to the house where Hayden and Liam were being held and immediately tried to break the locked chain-link fence open, only to find out at the last moment that it was electrified, causing Theo to be thrown backwards painfully. After asking if Theo was alright, Liam asked if he thought he could go get help, causing Theo to lie and say that he was the help. Theo then steeled himself before grabbing the fence, using all of his strength and willpower to break the fence open so that he could take Hayden and Liam back to the McCall House.

In the car on the way back, Theo watched as Liam and Hayden talked in the backseat, including when Liam kissed her and successfully used his pain absorption powers to alleviate Hayden's pain from the procedures the Dread Doctors did on her, filing this information away in his mind in case it became important later.

In *Lies of Omission*,

In *Status Asthmaticus*,

In *The Last Chimera*,

In *Damnatio Memoriae*,

In *Codominance*,

In *The Sword and the Spirit*,

In *Lie Ability*,

In *The Beast of Beacon Hills*,

In *Apotheosis*,

In *Ghosted*,

In *Heartless*,

In *Blitzkrieg*,

In *Memory Found*,

In *Riders on the Storm*,
## Trivia

* Both Hayden and Theo were part-Werewolf Chimeras who looked similar as a result of their wolf-dominant hybrid nature—both had the same glowing gold eyes, fangs, and claws typical of a Beta Werewolf.
* It was implied that Theo's eagerness to have Scott give Hayden the bite when she was dying of mercury poisoning was to see if a Chimera could survive the process, as Theo *also* getting the bite from Scott would make him a Beta of Scott's own making, and thus someone who could successfully steal his Alpha powers, making Theo's plan a lot more stream-lined and efficient.

## Gallery

*Status Asthmaticus**The Last Chimera**The Last Chimera**Codominance**Ghosted**Ghosted**Heartless**Heartless**Heartless**Heartless**Heartless*