For more on how and why the Werewolves of Teen Wolf group together in packs, See Teen Wolf Pack.
Alpha Pack Hierarchy
Pack members contend that they're a democratic group but observation suggests Deucalion leads through manipulation (Kali) and intimidation (the twins).
Deucalion explains that when an Alpha kills one of its own Betas - it gains their power. All members of The Alpha Pack killed their own packs. While Deucalion wanted each member to also kill their Druid Emissary, Kali's survived.
At the end of Lunar Ellipse, most of the pack members are dead (Kali, Ennis) or no longer Alphas (Ethan, Aiden).
By the end of the series, Ethan is the only member of the pack still alive.
Deucalion is played by Gideon Emery.
The character is named after a son of Prometheus, a Noah like character in Greek mythology.
Main Article: Deucalion
Ethan and Aiden
The characters are identical twins and had the ability to merge both their bodies into a single large creature. The mechanism for this transformation has yet to be explained.
Main Article: Ethan and Aiden
Kali is played by Felisha Terrell.
She appears to be Deucalion's second in command and often teases and cajoles him.
She is always barefoot and uses the claws on her feet in a martial arts style of fighting.
Main Article Kali
Ennis is portrayed by Brian Patrick Wade.
He is the strong, silent, type. He is seen communicating mainly with his fists and fangs.
He has a history with both the Hale and Argent families.
Main Article: Ennis