The Fault In Our Stars Wiki


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Biographical informations
Born N/A
Home Indiana, U.S.A.
Relatives Graham (brother)
Occupation Student
Status Alive
Cause of Death N/A
Portrayed by Nat Wolff
First Appearance The Fault in Our Stars

“But I will say this: When the scientists of the future show up at my house with robot eyes and they tell me to try them on, I will tell the scientists to screw off, because I do not want to see a world without him."
— Isaac

Isaac is one of the supporting characters of The Fault in Our Stars. He had eye cancer and one glass eye and one real eye, then the other real eye was removed and he is NEC. He and Augustus are best friends, and through him Augustus befriends Hazel. He was previously in a relationship with Monica, until she broke up with him upon hearing he would go blind. Isaac is known to like video games and has a wide sense of humor.

After undergoing surgery, Hazel visits him and he jokes, "Come over here so I can examine your face with my hands and see deeper into your soul than a sighted person ever could".

AppearanceIn The Fault in Our Stars, Isaac is described as being a long-faced, skinny guy with long blonde hair swept over one eye, and having rather large, thick glasses. In the movie, the two features listed that he doesn't have is his long blonde hair and hair that swept over his glass eye. He lost one eye to cancer when he was younger, so he had a glass eye until he was officially NEC, which was when they cut out the other eye, too. Edit

Relationships Edit

Augustus WatersEdit

Augustus and Isaac are very close friends, they were friends before the Support Group and before Augustus and Hazel met. Isaac and Augustus enjoy playing video games together and Augustus joined the Support Group to help Isaac under the stress of going blind.

TFIOS egg scene

It was thanks to Isaac that he and Hazel met in the first place. They hang out a lot and not much other than what is portrayed is said about their friendship- but it is evident that they're very close. Augustus seems to be Isaac's best friend after both eyes are removed.

Hazel Grace LancasterEdit

Isaac enjoys Hazel's company and they befriended each other very early in the book. In the Support Group, before becoming good friends, Hazel Grace says she and Isaac communicated through small sighs. Although they may not have been friends for a long time, it's seen that he and Hazel are very good friends and have bonded over time. Neither of them have shown romantic feelings towards each other.


Isaac and Monica were said to have a very close relationship and were together for fourteen months. Monica later dumped him when she learned that Isaac would become blind. Before she had broken up with him they were seen kissing in the parking lot and he grabbed her breast, also whispering "Always" to her. The relationship seemed very important to Isaac. She was only written about in a few scenes but was mentioned quite a few times by Isaac. Later in the book, Isaac takes revenge by egging her car with Augustus and Hazel. Isaac always talked about how he loved Monica. But then realized how she really felt about him, making him very wise

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