Ethan and Aiden

The characters are identical twins and have the ability to merge both their bodies into a single large creature. The mechanism for this transformation has yet to be explained.

They are members of The Alpha Pack. Three members of the group claim to have killed their own packs in order to become “faster and stronger”. If the twins also took this route - it has not been explicitly stated.

According to Lydia Martin, Ethan is gay. This belief is supported onscreen by his interest in Danny.

Ethan is played by Charlie Carver while his identical twin brother Max Carver plays Aiden.

Season 3
The twins attempt to capture Isaac Lahey and a mysterious girl. On foot they are able to chase down and almost catch the motorcycle on which Isaac and the girl try to escape. After the bike wrecks they merged into a one giant alpha and attacked. An electrical bolt fired from a "modified tazer" caused them to separate into individuals again. Later they appeared at Beacon Hills High School and attacked the mysterious girl there too. (read more...)

Ethan and Aiden are seen in friendly conversations with Lydia Martin and Danny in the school library. (read more...)

Ethan and Aiden attack Isaac, then frame him for attacking them. After Scott and Isaac mess with their motorcycles, the twins merge into one to take on both boys. They only stop when Deucalion shows up. He punishes them by slicing both of them across the cheek. (read more...)

Ethan sits with Danny on a road trip with the Cross Country team after the big Alpha Pack battle with Scott and Derek's Pack. Aiden is shown in flashback making out with Lydia. He later helps Kali get treatment for Ennis from Dr. Deaton. He comforts her after Ennis dies. (read more...)