Summary
Attack on Titanhas set boththe manga and anime mediums on fireover the years, capturing the imaginations of countless fans from all over the world. The series' lead protagonist, Eren Yeager, has a dark and often epic journey throughout the series that is chock-full of key friendships and personal dynamics.
From close childhood friends all the way over to unexpected allies in the war against the monstrous Titans, many characters in the beloved series have exhibited fascinating interactions with Yeager. The bonds he forms with some of the series' most beloved supporting characters have proved integral to the epic series' intense, often existential narrative and depth.

6Connie Springer Is A Funny, Easy-To-Root-For Supporting Character
Debut Episode - That Day: The Fall Of Shiganshina, Part 2
The well-meaning Connie Springeris introduced with a relatively straightforward goal in life: to make his family proud of him. As a member of the 104th Training Corps and later the Survey Corps, he has frequently shown a great level of both humor and kindness in the face of war.
Striking up a genuine, good-natured friendship with Eren through their shared military experiences, Springer frequently reveals himself to be a noble, loyal friend. Both men have a strong desire to protect humanity from the ever-present Titan threat, a shared passion that further strengthens their bond over time. His arc sees him move slowly from lovable comic relief to a war-hardened veteran made cynical by numerous setbacks and moral dilemmas over the years, making him one of the most interesting supporting characters in the series.

5Sasha Braus Is An Unconventional, Colorful Figure In The War Against The Titans
This relentless hoarder of food proved to be one ofAttack on Titan’s most eccentric characters during her time in the series. Seemingly embarrassed by her regional Dauper Village accent, Braus' obsession with disguising it gave her a humorous, often awkward aura.
As a part of the Scout Regiment, Braus gradually forms a unique bond with Eren. Her curious blend of both light-heartedness and determination often served as a form of comfort for Eren during the many challenging times the pair encountered. In a series as dark and confronting asAttack on Titan, the pair’s dynamic stood out due to the moments of levity it provided to the often brutal proceedings. The dramatic impact of their bond is hammered home evenfurther with Braus' shocking death, an emotional moment that permanently haunted the rest of the series.

4Jean Kirstein Grows To Respect And Admire Eren Yeager
Jean Kirstein’s early years provide an intriguing look at the complex psychological changes that can bebrought on by war. Initially dead-set on joining the Military Police Brigade with the ambition of maintaining a relatively peaceful career, Kirstein ultimately joins the Survey Corps and becomes an important figure in the bloody war on the Titans.
Initially depicted as being skeptical of Eren’s potential and abilities, Kirstein gradually evolves into a trusted friend over the course of the series. Despite their noticeably contrasting personalities, it becomes clear that Kirstein sports a healthy level of respect for Eren’s consistent determination and growth. Furthermore,his more realistic, grounded outlook on lifeadds depth to his dynamic with Eren. Overall, between his supportive nature and compelling character growth, Kirstein has proven to be one of Eren’s most valuable and intriguing friends over the years.

3Levi Ackermann Is Arguably The Toughest Character In The Series
Debut Episode - The Night Of The Closing Ceremony: Humanity’s Comeback, Part 2
The most powerful of all soldiers inAttack on Titan, the no-nonsense Levi Ackermann gradually forges an unexpected bond with Eren. Initially depicted as strict and detached, his friendship with Eren stems from their experiences fighting alongside each other.
Unsurprisingly, Ackermann’s incredible combat prowess and leadership traits make him an essential asset to the Titan-fighting cause. Serving as the captain of the Special Operations Squad,a powerful, dangerous unit within the Survey Corps, the eerily calm Ackermann is one of the series' most intimidating heroic characters. Riddled with grim battle scars and injuries from years of relentless warfare and combat, the tough captain’s more sensitive, human side is often on display through the recurring theme of his curious obsession with extreme cleanliness. Though they may seem like opposites in certain regards, Levi and Eren came to respect one another and combined their strengths for the sake of humanity, forming a strong bond in the process.

2Mikasa Ackerman Is A Battle-Hardened, Longtime Ally To Eren
Debut Episode - To You, In 2000 Years: The Fall Of Shiganshina, Part 1
Thisonce elite-level figurein the 104th Training Corps has a close, complex bond with Eren that goes all the way back to childhood. The daughter of parents cruelly murdered by human traffickers, Ackermann lives with Eren and his family following this tragic setback and maintained a strong bond with the series' lead character ever since.
Fierce andimmensely skilled in brutal combat, Mikasa has frequently proven to be a devoted, adopted sister to Eren, often putting her life on the line in a bid to keep him safe. On top of her loyalty and commitment to her adopted brother, Ackermann sports an interesting and rich history of her own, serving as the last known descendant of the Shogun group. This status eventually led to the fan-favorite Ackermann enjoying a surprising level of political influence in the nation of Hizuru.

1Armin Arlelt Is A Smart And Thoughtful Military Commander
This sharp-witted strategist has frequently proven to be an essential cogin the Survey Corps machineover the years. On top of his military might, Arlelt is best known for being a key childhood pal to both Eren Yeager and Mikasa Ackerman.
A dependable, steadfast ally to Eren, Arlelt has frequently proven to be an invaluable friend thanks to histactical thinking, general intelligence, and unwavering loyalty. Their close, lifelong bond has been forged through grueling shared experiences within the harrowing world ofAttack on Titan, and so has their desire to protect humanity from the fearsome Titans. Overall, between his consistent support and knack for helping Eren realize the bigger picture, Arlelt is an essential and close friend.