- Affectionate Nickname: Umetan
Oshima RyokaBorn on 21 August 1998 in Kanagawa Prefecture. Named Team B's vice captain in the 2015 shuffle.
- Affectionate Nickname: Ryo-chan
- Annoying Younger Sibling: A joke among older members is that she fulfills this role along with some of the other younger members called the kgsk or “kuso gaki” (“annoying kids”).
Kashiwagi YukiBorn on 15 July 1991 in Kagoshima prefecture.Was the former captain of Team B from the 2009 team shuffle to until the 2012 team shuffle.A concurrent member with NMB's Team N from 2014 to the 2015 shuffle, where she was appointed to become a concurrent member with NGT's Team NIII. She's one of the original Team B members.Has two solo singles: "Shortcake" and "Birthday Wedding".Sub-units she's been in are:
- French Kiss
- Affectionate Nickname: Yukirin, Black Kashiwagi, Marimokkori
- Beware the Nice Ones: Often called black-hearted by the other members.
- Breast Expansion: Some of the fans accused her of getting breast enhancement surgery and she angrily denied the accusations.
- Feminine Women Can Cook: Subverted. She can't even crack an egg properly.
- Image Song: Apart from her two solo singles "Shortcake" and "Birthday Wedding", "Yokaze no Shiwaza" from Team B 5th Stage, "Chinmoku" from French Kiss' single "If", "Mayonaka no Hamigaki" from French Kiss' single "Saisho no Mail" and "Kazanbai" from French Kiss' single "Romance Privacy".
- Large Ham: Usually very feminine and ladylike, but she goes all out when reacting to something.
- New Transfer Student: To NMB's Team N, where she held a concurrency, and currently to NGT's Team NIII. Ironically, she's much older than most of their members (except Kitarie, who was moved there from AKB anyway)
- The Ojou
- Reaction Shot: There's a reason she's called the "Reaction Queen".
- Seiyuu: Voiced Rumi Fujisaki in Sket Dance and Marimo Nogami in the OVA Marimo no Hana.
Kizaki YuriaBorn on February 11, 1996 in Aichi PrefectureOriginally from SKE’s Team S, moved to AKB’s Team 4 as co-captain during the 2014 shuffle. Moved to Team B and made captain on the 2015 shuffle.
- Affectionate Nickname: Yuria, Peace
- Ascended Extra: In the 3rd elections she made it to Undergirls from being not ranked, and in 2013 and 2014 she's placed even higher.
- Book Dumb
- New Transfer Student: Fully transferred from SKE.
- Otaku Surrogate: A big fan of shoujo manga, she even talks to Arina Tanemura on Twitter from time to time.
Takeuchi MiyuBorn on 12 January 1996 in Tokyo.
- Affectionate Nickname: Miyumiyu
- Elegant Classical Musician: Has absolute pitch and can play the trumpet, the guitar and the piano, the latter since she was two years old.
- Seiyuu: Voiced the minor character Hazuki Yanagikawa in AKB48's official anime AKB0048, although she's hardly noticeable.
Tatsuya MakihoBorn on October 19, 2001 in Tokyo
- Affectionate Nickname: Maki, Makichan
- The Bus Came Back: A tentative kenkyuusei for the 15th generation, she was officially made a kenkyuusei in October 2013.
Tanabe MikuBorn on 2 December 1992 in Shiga prefecture.One of the original Team B members.
- Affectionate Nickname Tanamin
- Demoted to Extra: Despite being an original Team B member, she's never ranked in the elections. She's only been featured in senbatsu once, in the Janken single "Chance no Junban".
- Otaku Surrogate: As her catchphrase in B Garden denotes: "Pour me a glass / And let's talk about wota stuff".
Nozawa RenaBorn on May 6, 1998 in Nagoya.Originates from JKT’s Team J, that she held a concurrency with while in Team K for a while, but was officially moved to just Team B during the 2014 shuffle.
- Affectionate Nickname: Rena-chan
- Ascended Extra: She's the first original JKT member to hold a concurrent position in AKB and to participate in the Janken tournament.
- But Not Too Foreign: She was born in Japan, but has lived since she was young in Indonesia due to her parents' work.
- Bilingual Bonus: Due to this, she's fluent in both Indonesian and Japanese. She also speaks English and French.
- Kindhearted Cat Lover
- New Transfer Student: She's originally from JKT. She was going to announce her graduation because her parents were going back to Japan and she couldn't stay in Indonesia by herself. A manager interrupted her speech and offered her to become a concurrent member on AKB during her stay in Japan.
Fukuoka SeinaBorn on August 1, 2000 in Kanagawa Prefecture.
- Affectionate Nickname: Seichan
Yokoshima AeriBorn on December 17, 1999 in Aichi.Team B’s first pick in the 2013 draft.
- Affectionate Nickname: Aerin
- Ascended Fangirl
- Identical Stranger: Noted by fans to resemble Matsui Jurina.
- Passionate Sports Girl: Good at sports, specially dodgeball.
Watanabe MayuBorn on 26 March 1994 in Saitama Prefecture. One of the founder members of Team B and AKB's current center after the 2014 elections.Has also released 5 solo singles.Sub-units she's been in are:
- Watarirouka Hashiritai
- Team Dragon from AKB48
- NO NAME
- Miracle Planet
- Affectionate Nickname Mayuyu
- Cute but Cacophonic: Subverted. Although she has one of the highest pitched voices in AKB48, her singing voice is really quite nice and cute.
- Does This Remind You of Anything?: Her third single, "Hikaru Monotachi", is basically a parody of the Vocaloid phenomenon.
- Expository Hairstyle Change: Grew out of her twintails in 2014, and in 2015 she got her hair cut shorter.
- Game-Breaking Injury: Got injured several times, causing her to miss out on several early stage performances.
- Girlish Pigtails: Her trademark hairstyle. However, lately she's been growing out of them.
- Image Song: Any of her singles' songs, along with "Zannen Shoujo" (from Team B 4th Stage) and "Nantai Renai Kuragekko" (from Watarirouka Hashiritai's single "Seishun no Flag"), as well as her senbatsu single "Kokoro no Placard".
- Otaku Surrogate: Self proclaimed!
- She even has an unofficial group, aptly titled Ota 4, aka Otaku 4 with 3 other members.
- Robot Girl: Members of AKB jokingly call her CG ("Cyborg Girl") due to the fact that she doesn't sweat at all.
- Seiyuu: Voices Chieri Sono in their official anime: AKB0048. She also voiced Natsuki Ryouura in Sunrise's movie Nerawareta Gakuen.
- Spotlight-Stealing Squad: Managed to rank first in the 2014 election, managing to beat Sashihara Rino, the previous number one.