Summer Cohen (née Roberts) is one of the main characters of the television series The O.C, is portrayed by Rachel Bilson.


Season 1 : by snobbery, to love for Seth Edit

Summer is the typical snobby and attractive girl Partygoers, shopping and tanning; is the daughter of a renowned plastic surgeon, and her mother abandoned her at the age of twelve. At the end of the first series Summer you understand that it is useless to be so shallow to have a good reputation at school, so try to be as sweet and tender.

It is during this transformation that Summer will love Seth Cohen. Nevertheless, she decided to leave him alone because she is ashamed of him and thinks that this story can destroy her social life to the Harbor. Since his relationship with Summer does not go very well, Seth decides to give an opportunity to Anna Stern, who exhibits a strong character, she shares his sense of humor and loves comics. With the season progresses, Summer is often jealous of their history and can not stand that Anna and Seth are so good together. So Summer gets angry and begins to attend a fool boy, Danny, but their relationship did not last long and Seth understands really love her.

Towards the end of the season Anna leaves Seth because it is also clear to her that he is still in love with Summer. Seth and Summer thus become a couple and announce it before the whole Harbor kissing each other and declaring their love. Soon after, Ryan Atwood, adopted brother Seth, starts from Newport. Seth fears his life may again be as it was before, because before Ryan takes up residence in Newport, had no social life and was quite marginalized. The arrival of the adopted brother instead had meant for him a new openness to relations with the boys of the school and especially the opportunity to know and be with Summer. For the fear of return to live that ugly period of his life, Seth part on a sailing boat, leaving home worried parents and Summer with the broken heart.

Season 2 : Zach and the resumption of her relationship with Seth Edit

In the second season Summer is dating Zach Stevens and when Seth comes home, he will do anything to win her back, intent which will succeed after a long time.

Zach is the beautiful version, protestant, quiet, self-confident and palestrata Cohen, the two boys are in fact very similar both physically and temperamentally and have the same passions, such as the one for the comics. Despite Summer does everything to show she wanted to stay with Zach and prefer him to Seth, in her heart she knows it's a lie to herself.

When Zach and Seth decided to create a graphic novel of their own and make friends, Summer and Seth are very close and she begins to have doubts about its history with the first, because it does not get along with his mother and sister the latter, two people very attracted by politics and from current events. A day for Zach and Seth the opportunity presents itself to show Atomic County (graphic novel) to professionals of comics : in fact a publishing house in San Diego, Wildstorm, takes them into consideration. Enthusiastic, they travel with Summer (which is inspired one of the characters, the Dolce Miss Vixen). But late at night they should spend the night in a hotel to be first on the list the next day, and Seth remains awake all night in torment, wondering what he is doing Summer in bed with Zach. The next day, tried by nervousness and little sleep the night before, drink a lot of coffee and frustrates the meeting with publishers, taking an absolutely insane interview and hysterical and inventing a story between two superheroes of the comic: the ironist (him) and Miss Vixen (Summer).

A Newport blurts out his concerns to Zach, and demand without shame if the two have gone to bed. He obviously is raging, and the same Summer, though still say no. The fact is that (the trusts only Marissa) at the hotel did not want to do because he thought Cohen. Zach planning a trip to Italy for her sister's wedding, and wants to take even the girlfriend; she initially accepts, however, the airport realize he is still in love with Seth, Zach and leaves to go back to him. The return of Zach, despite some minor quarrel, Summer and Seth appear again in tune; but then he is absorbing too much of Atomic County and she feels left out so breaks up with him again.

In recent episodes, George Lucas is interested in Atomic County and wants to meet Seth and Zach (who at the same time want to be both knights of Summer for prom). But one must go to the appointment and the other has to go to prom with Summer. The two are really torn in the choice, being both the really important opportunities for both. Eventually flipping a coin, the fate Cohen wants to Lucas and Zach from Summer. But both realize that they would like to be somewhere else and so Zach goes to save the meeting and Seth returns from his girlfriend, crowned prom queen.

Season 3 : the death of Marissa Edit

In the third series of The O.C., Ryan, Marissa, Seth and Summer he is at the center of controversy for the shooting which also involved Trey Atwood.

However, having established that Ryan is innocent and Marissa shot just to defend him, the school board decides to only allow him to return to school. In addition, Jack Hess, the bad "guarantor of discipline", eager to wanting to ruin the lives of two boys, can also hunt him when, at the party earlier this year, Ryan comes up with Marissa. To defend it from Jake Hess who puts his hands on him, Ryan beats him and so both are out of the Harbor.

Seth and Summer want to maintain the honor of their friends and especially Marissa (who now lives camped by her best friend and is enrolled in public school) by Taylor Townsend. Taylor has always been his rival in organizing parties at Harbor, and to prevent her take the post of president, although do not know anything about social activities, Summer aims and with a little 'intelligence and Seth aid earn enough points to earn the rooting of all.

This episode is to question the character of Summer, which begins to take an interest a little 'more to the current and slowly turns into a more mature and responsible, while remaining firmly "small force of nature" of the previous series.

When they discover together Hess and Taylor, they use this information to readmit least Ryan, and then have to worry about the new Coop friends, Johnny, Chili and Casey, who are likely to push it away from her boyfriend. For Summer luck manages to keep her feet on the ground, and after a while 'because of quarrels with Seth Taylor was in love with him, if they girlfriend organizing a campaign for the re-admission of the girl.

Just the four back on track, Summer finds out that I have a very high rating to the SAT (the entrance exam to college) and competes with Seth because he now feels he has also lost the advantage of intelligence, the only thing that made him "man" in her eyes. Passed this argument by the force that unites them, come other complications for the couple: Seth begins to make the pipes and jump the appointment with the Rhode Island Brown's teacher (university of Rhode Island, where Summer, despite the cold, decided to follow him).

So he begins to lie to her, and on Valentine's day, to make amends, writes down anything that might make her parents mad and tells her that if he told some other lie, could have given the list to Sandy and Kirsten. Meanwhile Seth and Summer argue that perhaps only one of them can be admitted to Brown and Summer swears that if only she will be admitted, not attend but Seth will follow wherever he goes. Then come the university letters, to which she was admitted only Summer. Seth begins to lie again saying that he had been admitted, revealing only Ryan the truth. The two continue to fight as long as a school dance Seth tells Summer does not want to go to Brown, but not revealing the truth. Summer, not knowing the real reason, was hurt and the two break up.

Back home starts to tear the photo collage he had made with her and Seth university and starts crying, consoled by Marissa. The next day, at school, Taylor convinces her that something is wrong. Invigorated, she confronted him and asked him what he hides. Seth, who wants frequent Summer Brown, goes to his house and spring, telling her that it is better to suffer so even if you both. Summer is destroyed and seeking help from Taylor, who asks if she still loves him, so the two organize a plan. The next day, at school, in the afternoon, there is the counter of the kiss (where in the first season, Seth salt and declares his love in Summer) and around many hearts balloons. Seth arrives and soon after Summer. The latter salt on the counter and said that when he left her, the recipe missing an ingredient, the most important: Seth had said they did not love her anymore. At this point he is in trouble because Summer asks him to tell her if he really does not love her more looking into her eyes. Seth, who was forced by his own good, he'll say. Summer continues to cry, trying to forget Seth in all ways, but when Seth is the test of the Brown college and meets Anna, the two are reunited and Summer sees them thinking that the reason for his breakup with Anna Cohen is right. At the prom, Seth comes up with Anna to try to make him jealous Summer whose rider a famous Korean singer. Summer here is drunk and when she was elected homecoming queen falls from the stage and faints. Seth so he tells the whole truth about how it is not admitted to Brown and tells her he loves her more than before, and the two back together. Seth then smoking a joint and forgets to turn it off, setting fire to the Newport Group and being consequently arrested. Seth, Summer, Ryan and Marissa graduate. Marissa receives a letter from his father when he asked if she wanted to spend a year with him. You agree and will give the gift that has made the mother (necklace) to Volchok, the former boyfriend, because he cheated on her with a girl at a dance. Ryan instead receive a car from the mother will be destroyed by Volchok in a car accident by killing Marissa.

Season 4 : Graduation and Marriage Edit

After the death of Marissa, we find Summer at University (Brown), who tries to pick up the pieces of her life staying away from Orange County. Summer is destroyed for Marissa. She can not forget her best friend, and will have serious problems with depression. This leads to even imagine seeing Marissa still alive, and to have a new way of life, which is no longer "go shopping, get a tan and shave", but protect animals along with her college buddy Che.

The situation is complicated when they do run the rabbits from a scientific laboratory. When Brown investigates the incident, Che says he acted alone for not reporting That, but unfortunately he does not show the same courtesy, indeed, the prosecution of other offenses. Therefore, the Summer is expelled and returns to O.C.

Following the expulsion of Summer by Brown, Seth, he decided to postpone his departure for Providence, to stay beside her, and then leave together. Before the New Year's Eve (2007), Summer took a pregnancy test because she thinks she is pregnant of him; because of different adventures that revolve around the loss of the bag containing the test, the boys will be able to know the outcome until the next day. Seth asks her to marry her before discovering the result, which proves to be negative then. The two decide to get married anyway.

After reviewing his ex-friend Holly Fischer (who was attending when he was still in high school and Marissa stood with Luke Ward), he understands that no one really knows who he is, you do not recognize, and it needs to find her own way, so break  the engagement.

Summer is determined to continue her activism also staying at home and thus opened a blog in defense of seals, thus stands out from G.E.O.R.G.E. (ethical operations group geo energy resources) that offers to go to work with him touring for nine months between the universities of America, to bring activism, living on a bus. Even if you think this is a part of her life and her destiny, while the other half is Seth, does not decide immediately who to choose between the two.

One day an earthquake destroys Newport Beach, but Seth and Summer fortunately manage to reach safety in Ryan's car. Six months after the incident, Seth urges Summer to accept the job offer and leave with G.E.O.R.G.E., because the two of them always stay together regardless of distance and time. She finally understands his point of view and at the end of the series appears in an article in a newspaper for the contribution she has made.

She and Seth get married in 2013.


Summer Relationships Edit


Summer and Seth at the prom.

Seth Cohen Edit

Boyfriend, later husband, the love of her life.

Marissa CooperEdit

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Summer and Marissa after Seth break up with her.

Best friends.

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The first meet of Summer and Ryan.

Ryan AtwoodEdit

Good friends; adoptive brother-in-law.


Summer and Taylor.

Taylor TownsendEdit

Enemies, later Best Friends.


Her friend/Enemies

Anna SternEdit


Holly FischerEdit


Neil RobertsEdit


Sandy CohenEdit


Kirsten CohenEdit


Sophie Rose CohenEdit


Caleb NicholEdit


Sophie CohenEdit


Memorable QuotesEdit

See Memorable Quotes by Summer Roberts

"Chino?, ew!"

- to Ryan during their first meeting, in the Pilot.

"You're my destiny Cohen"

- to Seth



Season 1Edit

Season 2Edit

Season 3Edit

Season 4Edit