Hiro Shimono is a Japanese voice actor and singer affiliated with I'm Enterprise. His notable roles include Keima Katsuragi in The World God Only Knows, Connie Springer in Attack on Titan, Nai in Karneval, Ayato Kamina in RahXephon, Akihisa Yoshii in Baka and Test: Summon the Beasts, Norifumi Kawakami in Ace of Diamond, Kokichi Ōma in Danganronpa V3: Killing Harmony, and Dabi in My Hero Academia.

Hiro Shimono plays as Deroline (voice) in Attack on Titan.
Hiro Shimono is the top #1 member of the cast and appears in 94 episodes.

Hiroshi Kamiya is a Japanese voice actor, singer and narrator affiliated with Aoni Production. He is best known for being the voice of Choromatsu Matsuno from Osomatsu-san, Takashi Natsume from Natsume Yūjin Chō, Akashi Seijuro from Kuroko's Basketball, Levi Ackerman from Attack on Titan, Mephisto Pheles from Blue Exorcist, Yuzuru Otonashi from Angel Beats!, Yato from Noragami, Nozomu Itoshiki from Sayonara, Zetsubou-Sensei, Koyomi Araragi from the Monogatari series, Sōma from Working!!, Izaya Orihara from Durarara!!, Trafalgar Law from One Piece, Tieria Erde from Mobile Suit Gundam 00, and Kinshirō Kusatsu from Cute High Earth Defense Club LOVE!. He won "Best Lead Actor" and "Best Personality" at the Third Seiyu Awards, and "Best Supporting Actor" at the Second Seiyu Awards. He hosts radio show Dear Girl Stories along with voice actor Daisuke Ono.

Hiroshi Kamiya plays as Ittetsu Takeda (voice) in Attack on Titan.
Hiroshi Kamiya is the top #2 member of the cast and appears in 85 episodes.

Yoshimasa Hosoya is a Japanese voice actor and singer from Hiroshima. He was represented by Mausu Promotion and is now a freelancer. He was also a member of the pop duo MaxBoys along with Toshiki Masuda, a fellow Japanese voice actor. In 2014 & 2016, he won the 8th Seiyu Awards & 10th Seiyu Awards for Best supporting actor. Among his many roles in anime, he voiced Kojou Akatsuki in Strike the Blood, Reiner Braun in Attack on Titan, Fumikage Tokoyami in My Hero Academia, Tamaki Katagiri in Black Bullet, Shichika Yasuri in Katanagatari, Daryun in The Heroic Legend of Arslan, Belial in Granblue Fantasy, and Orga Itsuka in Mobile Suit Gundam: Iron-Blooded Orphans. He also appears in many sports anime as Junpei Hyūga in Kuroko's Basketball, Sosuke Yamazaki in Free! Eternal Summer, Asahi Azumane in Haikyuu!!, Tetsuya Yuki in Ace of Diamond and Otabek Altin in Yuri!!! on Ice. On April 23, 2017, he announced a hiatus to undergo treatment for his throat. On August 4, 2017, he announced his return to voice work.

Yoshimasa Hosoya plays as Asahi Azumane (voice) in Attack on Titan.
Yoshimasa Hosoya is the top #3 member of the cast and appears in 85 episodes.

Romi Park is a Japanese actress and voice actress of Korean descent. At the first Seiyuu Awards, she won an award for her portrayal of Nana Oosaki in Nana. She is known for voicing tough, calm, and mature preteen or teenage boys.

Romi Park plays as Tao Ren (voice) in Attack on Titan.
Romi Park is the top #4 member of the cast and appears in 52 episodes.

Yuki Kaji is a Japanese voice actor and singer affiliated with the agency VIMS. He has also been a radio host and acted on stage, and since 2015 has also occasionally been cast in on-screen roles in television dramas. He has voiced many notable roles such as Eren Yeager in Attack on Titan, Issei Hyodo in High School DxD, Shu Ouma in Guilty Crown, Alibaba in Magi: The Labyrinth of Magic, Kazuya Ichinose and Akio Fudou in Inazuma Eleven: Orion no Kokuin, Clemont in Pokémon XY, Meliodas and Zeldris in The Seven Deadly Sins, Yukine in Noragami, Speed-O'Sound Sonic in One-Punch Man, Kanato Sakamaki in Diabolik Lovers, Todoroki Shōto in My Hero Academia, Kozume Kenma in Haikyu!!, Koichi Hirose in JoJo's Bizarre Adventure.

Yuki Kaji plays as Koichi Hirose (voice) in Attack on Titan.
Yuki Kaji is the top #5 member of the cast and appears in 39 episodes.

Kisho Taniyama is a Japanese musician and voice actor. He is the vocalist and lyricist of the Japanese rock unit/brand GRANRODEO.

Kisho Taniyama plays as Dark Schneider (voice) in Attack on Titan.
Kisho Taniyama is the top #6 member of the cast and appears in 39 episodes.

Yui Ishikawa is a Japanese actress and voice actress who was previously represented by Sunaoka Office, but now belongs to mitt management. Before she started as a voice actress, she was a stage actress and has been voicing radio dramas since 2007. One of her biggest roles was as starring character Mikasa Ackerman in the anime series Attack on Titan. She also voices China Kousaka in Gundam Build Fighters, Sayuri Haruno in Bonjour Sweet Love Patisserie, Hinaki Shinjo in Aikatsu and YoRHa No.2 Type B (2B) in Nier: Automata. At the 8th Seiyu Awards in 2014, she won an award for Best Supporting Actress. She has attended anime conventions around the world, including Sakura-Con in Seattle, Otakuthon in Montreal, and Japan Expo in Paris, and Madman Anime Festival in Brisbane.

Yui Ishikawa plays as 2B (voice) in Attack on Titan.
Yui Ishikawa is the top #7 member of the cast and appears in 24 episodes.

Marina Inoue is a Japanese voice actress and singer. She was signed onto Sony Music Entertainment Japan's Aniplex division until 2007. As for her voice acting career, she is employed by Aoni Production (previously with Sigma Seven). Inoue made her debut as a voice actress and singer after she was chosen out of 2,000 people from the "Gonna be a star" auditions (hosted by Sony Music Entertainment Japan) for the title role in the OVA Le Portrait de Petit Cossette.

Marina Inoue plays as Artoria Gremm (voice) in Attack on Titan.
Marina Inoue is the top #8 member of the cast and appears in 12 episodes.

Shiori Mikami is a Japanese voice actress who is affiliated with Aoni Production. She was a junior member of Aoni through 2011. Her best-known roles include lead character Akari Akaza in YuruYuri and Krista Lenz in Attack on Titan. She won Best New Actress at the 6th Seiyu Awards in 2012.

Shiori Mikami plays as Ayumi Tougeguchi (voice) in Attack on Titan.
Shiori Mikami is the top #9 member of the cast and appears in 12 episodes.

Tomohisa Hashizume is a Japanese male voice actor and narrator, affiliated with Aoni Productions.

Tomohisa Hashizume plays as Bertolt Hoover (voice) in Attack on Titan.
Tomohisa Hashizume is the top #10 member of the cast and appears in 12 episodes.