"He has one of the purest, sincerest, kindest minds I've ever heard. You're lucky to share his thoughts."
- ―Edward Cullen on Seth to Jacob
Seth Clearwater is a member of Jacob Black's renegade shape-shifter pack and was first introduced in New Moon as Leah Clearwater's younger brother and one of the youngest members of Sam Uley's wolf pack before joining Jacob's in Breaking Dawn. After Jacob and his own sister, he is the most developed shape-shifter in the Twilight Saga.
He is the son of Harry and Sue Clearwater, and is also the second cousin of Emily Young. Seth imprinted on Carly Jensen who became his wife and have a son, Colby Clearwater. He is also the father-in-law of Daphne Walker, the uncle of Roxanne and Sabrina Dallas and uncle-in-law of Roman Hobbs and Garret Walker.
He is portrayed by Boo Boo Stewart in the movie adaptations.
Biography
For all of Seth's information in the Twilight Saga, visit his page in the wiki website.
A New Life

Seth appears in the story as he and the tribe are met up with Jacob and Renesmee and Lucas Stone after hearing about him. Seth greets Lucas excitedly as they all got to hang out and got to know him. After Lucas turns into a vampire, Seth and some of the pack members met up at Jacob’s shop to see how Lucas is. There, Colin was still being hostile about the Cullens going as far calling Renesmee a freak, which angers Lucas resulting those two in a fight as Seth and the others try to restrain Colin but failed as Colin phased and jumped on Lucas, however, before he could, Lucas shot an aura sphere at Colin that sent him flying until he hit the ground giving Seth and the others the chance to restrain him.
The Other Half and A Reason To Smile

Seth meets Carly.
Seth appears with Embry and Quil at La Push as they ran into Lucas on his date with Krystal Diamond. Seth returns to La Push with the two along with Leah as they met up with Jacob, Lucas, Krystal and Renesmee along with Krystal’s friends. There, Seth imprinted on Carly Jensen as the two developed feelings for one another. He soon revealed to her his shape shifting form telling her about the tribe’s legends bringing her into the supernatural.
Seth was later seen chasing human/vampire hybrid, Jonathan, and he calls the pack for assistance to catch him. However, Jonathan suddenly disappeared in a flash leaving the packs in confusion on how he escaped. Days later, Jonathan returned along with Miley Ray and the pack once again were chasing after Jonathan when Miley used her gifts to assist Jonathan and the pack were unconscious until they were woken up by Jacob, Lucas and Renesmee and went off to find Krystal, however, Seth has to go to the Cullen house to have Carlisle check on him due to an injury he received. The Cullens returned with Krystal who is now a vampire.
Seth was present in the end where he and Carly’s relationship became close as they and everyone celebrate Lucas and Krystal’s engagement.
Happily Ever After
Seth appears at Lucas and Krystal’s wedding as Carly’s date.
Full Of Surprises

Seth at a pack meeting.
Seth meets up with the pack for a meeting where Lucas’s friend Tiffany Stewart is pregnant with vampire baby and the father is Joham, who is creating a super race of vampire human hybrids. On the way, Seth tells how he invited Carly to move in with him and her grandmother already had her things packed up.
Seth joins some of the pack in assisting the Cullens when Blake and Christina were spotted and tried to stop them but they escaped. Turns out, the two were luring them away as Joham leads an army of newborns to distract those protecting the Cullen house as Joham tries to capture Tiffany’s daughter Lucina Stewart. Seth and the others joins in as Joham escaped empty handed.
After knowing what Joham’s plan is and how to get Lucina, Seth and members of the pack, fight off Joham from getting Lucina and were able to subdue Joham in the end. Seth watches as the Volturi suddenly arrive and destroy Joham for his crimes.
Value In Beliefs

Bella reveals that Seth and Carly have a son Colby Clearwater. He was seen briefly in the end of the story after the Cullens returned home from their trip in Detroit. There, Jalen Long comes in and joins the coven and Seth was there to greet him with ease.
Have A Purpose
Seth attended Tiffany and Jalen’s wedding. He was later called to help the pack for a search for Jemma, who has been with the Cullens for awhile and suddenly disappeared and are unable to find her due to having no scent. After the downfall of the Volturi, Seth joins the pack in assistance as the new Volturi.
A Christmas Surprise
Seth and his family were present at the Cullen house where they retell the story of the events to the guests as the laws have been adjusted for them to know about the supernatural as long as they swear to secrecy.
Fourteen Years Later
Seth moves his family in Minneapolis, Minnesota after Jacob meets another family from the Quileutes. His son soon joins the pack after his first phases while Seth works at Walker Mechanics.
Physical appearance
For all of Seth's physical appearance in the Twilight Saga, visit his page in the wiki website.
Personality and traits
For all of Seth's personality and traits in the Twilight Saga, visit his page in the wiki website.
Wolf abilities
For all of Seth's wolf abilities in the Twilight Saga, visit his page in the wiki website.
Relationships
For all of Seth's relationships with the characters in the Twilight Saga, visit his page in the wiki website. This will talk about his relationships with the new characters.
Carly Jensen

Seth's wife: Carly Jensen.
"To be honest, I don't care because I love you."
- ―Carly to Seth
Carly Jensen is Seth's wife who he imprinted on.
The two of them first met at La Push beach where Seth imprinted on Carly. Because of it, Seth told Carly of the tribe’s legends by phasing in front of her where Carly accepts who he is. She confesses her love for Seth to which he returns happily making them a couple.
They got married and have a son together, Colby.