"After almost two years of getting to know vampires and werewolves, I should be used to all of this by now."
- ―Nathan
Nathan Dallas is one of Krystal Diamond’s best friend who is imprinted by Leah Clearwater a shape shifter from the Quileute tribe thus bringing him into the supernatural. He marries her and became the father of Roxanne and Sabrina Dallas.
He is portrayed by Ross Lynch.
Biography
Early life
Nathan Dallas was born in Forks, Washington raised by his father and his second wife and has an older sister who got married. He attends Port Angeles High School and became friends with Carly Jensen and Danielle Olsen. Nathan later becomes best friends with Krystal Diamond when she transfers to his school from Olympia.
The Other Half & A Reason To Smile

"Okay, it's official, I've gone crazy!"
- ―Nathan
Nathan begins his junior year in Port Angeles High. At the start of the year, the Cullens arrived causing Nathan to be annoyed hearing the students immediately have a romantic liking to them stating how everyone is beautiful and unlike the boys, he doesn’t think inappropriate things about the Cullen women which was what Edward Cullen grew a liking to him. Nathan was then surprised to see the next day when Krystal has lunch with Lucas Stone and sees the change in Krystal when she developed feelings for him.

Danielle and Nathan shock seeing Krystal having lunch with Lucas.
In A Reason To Smile, Nathan, Carly and Danielle spend the night at Krystal's house where Krystal tells them that she and Lucas confessed their feelings for each other causing Nathan to be annoyed when Carly and Danielle to be excited about it by screaming. He then helps Krystal get ready for her first date with Lucas when Krystal gave the news that he asked her out right after the volleyball game by calming her down with his massaging skills.
After Krystal's father, Roark Diamond, died and moved in with the Cullens being her guardian to avoid her moving to New York, Krystal calls Carly who is with Danielle and Nathan to apologize for being so distant and the three of them forgave her and were invited to hang with her and Lucas along with Renesmee Cullen, Jacob Black and his friends. They all met up at La Push where Nathan meets Leah Clearwater who imprints on him. Nathan was then brought into the supernatural when Leah, along with her brother Seth Clearwater and Embry Call who imprinted on Carly and Danielle respectfully, transformed into wolves and explain to the three of them of the tribe's legends also revealing that Lucas and the Cullens are vampires. Nathan accepts Leah’s shape shifting powers, although he was overwhelmed of the information and was discussing the events with Danielle and Carly after leaving La Push when they saw Lucas who tells them that Krystal is suddenly missing. Nathan goes with Carly and Danielle where they arrived at the Cullen house to see Seth who is hurt. They were joined by Jacob, Leah, Embry and Quil Ateara along with Lucas who couldn't find Krystal until a half-vampire half-human hybrid named Nahuel arrives and informs the Cullens that his half brother Jonathan along with Miley Ray, Krystal's tormentor, who is a vampire has kidnapped Krystal and the reason why he wants Krystal is to get revenge on Lucas for killing Jonathan's mate Olivia by killing Krystal. While the Cullens and Jacob went off to find Krystal, Carly, Nathan and Danielle stayed with Seth, Leah, Embry and Quil as they explain the three more about the supernatural and Nathan confessed his love to Leah as she returned those feelings.
A year after Krystal was found and was transformed into a vampire from a near death experience, Nathan graduates from high school where he plans to attends college studying to be a massage therapist, and attends the graduation party at the Cullen's place where after the party he congratulates Lucas and Krystal on their engagement.
Happily Ever After

Nathan at Lucas and Krystal's wedding.
"Lucas, Krystal's like a sister to me so if anything happens to her you have me to deal with because I know how to use a gun. Well you know what I mean."
- ―Nathan to Lucas on Krystal
Nathan helps the Cullens set up the wedding for Krystal and Lucas was later attending Lucas’s bachelor party with him, the Cullen men and Jacob where Nathan won the competition and Emmett Cullen lost the bet. Nathan attends the ceremony and was at the reception where he gave a toast of congratulations and was last seen saying goodbye to Krystal before she and Lucas left for their honeymoon.
Full Of Surprises
Nathan was mentioned by Jacob about him getting ready to tell his family that he’s moving in with Leah hinting they got married sometime before.
Value In Beliefs
Bella Swan explained that Nathan and Leah are surprisingly going to have a baby after Leah stopped phasing for a long period of time and Nathan use his massage therapy skills to keep Leah calm from phasing during her pregnancy. He was seen along with his friends and pack members at the Cullen’s house meeting Carly and Danielle’s kids and soon met Jalen Long from Detroit who has come to join the Cullens and became Tiffany Stewart’s mate.
Have A Purpose
Nathan made a cameo appearance where he and Leah along with her family attend Tiffany and Jalen’s wedding. He also appeared at Lucina’s Stewart’s sixth birthday party.
A Christmas Surprise
Before the story, Leah gave birth to twin daughters, Roxanne and Sabrina Dallas. He and his family joined the Cullens to celebrate Christmas. Nathan listens to the Cullens explain the guests about the supernatural and what they are due to them being the new Volturi where they adjusted the law that if a civilized vampire has any living family member or someone connected to, they have the right to know as long as they don't reveal the existence to other humans.
Long Live Life
Although Nathan never appeared in the story, it was explained that he and his family moved to Minnesota when Jacob discovers another family from the Quiluete tribe and formed a new pack where his daughter Roxanne began phasing from her mother’s bloodline.
Physical appearance

Nathan is described as having blue eyes, curly blonde hair being 5’11” tall with a heart shape face.
Personality and traits
"I really need to hang with some boys."
- ―Nathan
Nathan is described to be a friendly and loyal person. He is mostly seen freaking out when something sprung at him in surprise as seen when he was told of the supernatural. He also has a habit of fainting from the unexpected as seen hearing of the Cullens actual age.
Before the Cullens, due to Nathan being the only male member of the group he tends to complain that he needs some male friends but he loves the girls no matter what. He even has earplugs to prepare himself from his friends when they scream in excitement.
After graduating high school, he attended college where he became a massage therapist due to his massaging skill which became helpful to Leah to avoid phasing during pregnancy.
Relationships
Nathan is the only son and younger brother. He is the husband of Leah Clearwater, who imprinted on him, and is the father of Roxanne and Sabrina Dallas and the father-in-law of Roman Hobbs and Garret Walker as well as the brother-in-law of Seth Clearwater and Carly Jensen, the uncle of Colby Clearwater and uncle-in-law of Daphne Walker, the son-in-law of Harry and Sue Clearwater and stepson-in-law of Charlie Swan and is also connected to the Cullen family.
Leah Clearwater

Nathan's wife: Leah Clearwater.
"I met a lot of beautiful girls before but Leah is by far the most beautiful girl I've ever seen."
- ―Nathan on Leah
Leah Clearwater is Nathan’s wife who is a Quileute shape shifter and imprinter.
The two of them first met at La Push beach where Leah imprinted on Nathan which she never thought could happen to her due to her being the only female to shape shift. Because of it, Leah told Nathan of the tribe's legends by phasing in front of him. Even though was overwhelmed about the supernatural, he accepts Leah’s nature and confesses his love for Leah to which she returns happily making them a couple.
Nathan tends to use his massaging skills to help Leah calm down due to her temper problem that automatically triggers her phasing especially when she was pregnant. The two later have twin daughters Roxanne and Sabrina.
Krystal Diamond

Nathan's friend: Krystal Diamond.
"You're like a sister to me."
- ―Nathan to Krystal
Krystal Diamond is Nathan’s best friend.
The two of them met when Krystal transfers to her school and they became best friends. Krystal thinks of Nathan as the brother she never had.
When Krystal falls in love with Lucas, Nathan was happy to see the change in Krystal and supports her relationship with him. Krystal soon knows about Lucas being a vampire but must keep it secret from Nathan until later Nathan meets Leah who imprints on him and later reveals her true nature as a shape shifter also revealing Lucas's secret bringing Krystal and Nathan closer. In A Christmas Surprise, Leah and Nathan have twin daughters, Roxanne and Sabrina, and Nathan named Sabrina's middle name after Krystal.
Carly Jensen

Nathan's friend: Carly Jensen.
Carly Jensen is Nathan’s best friend and sister-in-law.
Nathan and Carly became best friends along with Danielle and later Krystal. Although Nathan states he needs to hang out with boys, he cares about Carly despite how she acts like a stereotypical teenage girl. Both of them were brought into the supernatural when they were imprinted, Carly with Seth and Nathan with Leah, and were told of the legends and the Cullens being vampires bringing the two closer.
With Carly and Nathan's marriage to the Clearwaters, the two of them became in-laws.
Danielle Olsen

Nathan's friend: Danielle Olsen.
"I just hope my family doesn't freak out that I'm in love with an older woman."
"Your sister married her husband and he's twenty years older than her. What difference will it make of you?"
- ―Nathan and Danielle
Danielle Olsen is Nathan’s best friend.
Nathan and Danielle became best friends along with Carly and later Krystal. Although Nathan states he needs to hang out with boys, he cares about Danielle despite how she’s boy crazy before meeting Embry. Both of them were brought into the supernatural when they were imprinted, Danielle with Embry and Nathan with Leah, and were told of the legends and the Cullens being vampires bringing the two closer.
Lucas Stone

Nathan's friend: Lucas Stone.
"Listen Lucas, I appreciate you inviting me to your bachelor party but I feel, I don't know… left out if you know what I mean."
- ―Nathan to Lucas
Lucas Stone is Nathan’s friend who marries Krystal. The two of them had class in history together.
Lucas takes a liking to Nathan since he reminds Lucas of himself. Nathan welcomes Lucas for being with Krystal and accepted him as a friend. In The Other Half and A Reason To Smile, Nathan, Carly, and Danielle were invited to hang with Lucas, Krystal, Renesmee, Jacob and his pack. Nathan meets Leah as she imprints on him and learns about the supernatural bringing him and Lucas closer. In Happily Ever After the day before Lucas maries Krystal, Lucas invites Nathan on his bachelor party to hunt animals to which he won. At the reception, Nathan gives a toast to the couple playfully threatening Lucas that he knows how to use a gun.