If My Wife Becomes an Elementary School Student

Director

• 
  Tsuboi Toshio
• 
  Yamamoto Takeyoshi
• 
  Kato Naoki

Screenwriter

• 
  Oshima Satomi

Main Role

• 
  Tsutsumi Shinichi

  Niijima Keisuke

  Main Role
• 
  Maida Nono

  Shiraishi Marika

  Main Role

Support Role

• 
  Makita Aju

  Niijima Mai

  Support Role
• 
  Ishida Yuriko

  Niijima Takae

  Support Role
• 
  Yoshida Yoh

  Shiraishi Chika

  Support Role
• 
  Morita Misato

  Moriya Konomi

  Support Role
• 
  Baba Tohru

  Soejima Yoshiyuki

  Support Role
• 
  Tanaka Shunsuke

  Uda Shinichiro

  Support Role
• 
  Iizuka Satoshi

  Nakamura

  Support Role
• 
  Yanagiya Kyotaro

  Master

  Support Role
• 
  Kamiki Ryunosuke

  Koga Yuri

  Support Role
• 
  Sugino Yosuke

  Aikawa Renji

  Support Role
• 
  Ogura Rio

  Yako

  Support Role
• 
  Touma Ami

  Izumo Rion

  Support Role
• 
  Mizutani Kaho

  Kikuchi Shiori

  Support Role
• 
  Kawaguchi Waku

  Takeru

  Support Role
• 
  Tanaka Hanna

  Miyuki

  Support Role
• 
  Iida Harune

  Himari

  Support Role
• 
  Kondo Yoko

  Izumo Yuka

  Support Role
• 
  Takaku Keitaro

  Izumo Tatsuro

  Support Role

Guest Role

• 
  Togashi Makoto

  Misaki [Takae's friend] (Ep. 1)

  Guest Role
• 
  Mitsuo Tamako

  Yuko [Takae's friend] (Ep. 1)

  Guest Role
• 
  Ando Akinori

  [Takae's friend] (Ep. 1)

  Guest Role
• 
  Sawaguchi Kanako

  [Takae's friend] (Ep. 1)

  Guest Role
• 
  Okano Yoichi

  [Job applicant] (Ep. 1)

  Guest Role
• 
  Sakai Takashi

  [Job applicant] (Ep. 1)

  Guest Role
• 
  Tomoda Suzu

  [Elementary school student] (Ep. 1)

  Guest Role
• 
  Okude Hinata

  [Elementary school student] (Ep. 1)

  Guest Role
• 
  Sugawara Daishi

  [Elementary school student] (Ep. 1)

  Guest Role
• 
  Yamagami Nene

  [Marika's classmate] (Ep. 1-4)

  Guest Role
• 
  Owada Riri

  [Marika's classmate] (Ep. 1-4)

  Guest Role
• 
  Wakabayashi Hidetoshi

  [Marika's homeroom teacher] (Ep. 1-4)

  Guest Role
• 
  Takubo Issei

  Hayashi Daisuke [Takae's friend / co-worker] (Ep. 1-2, 11)

  Guest Role
• 
  Yamashita Kohei

  Kawashima [Mixer participant] (Ep. 2)

  Guest Role
• 
  Ikeda Keiko

  [Elementary school mother] (Ep. 2)

  Guest Role
• 
  Murakoshi Ryota

  (Ep. 2)

  Guest Role
• 
  Takemoto Kenshi

  [Office worker] (Ep. 2)

  Guest Role
• 
  Shima Takeaki

  Yoshida [Mai's senior] (Ep. 3)

  Guest Role
• 
  Sato Takashi

  Umezono [Coffee shop customer] (Ep. 3)

  Guest Role
• 
  Yamanishi Atsushi

  Aikawa Kenichi ["Aikawa Komuten" owner] (Ep. 3, 7)

  Guest Role
• 
  Kazami Rika

  (Ep. 3)

  Guest Role
• 
  Shibu Asuka

  [Teacher] (Ep. 4)

  Guest Role
• 
  Imaizumi Amane

  [Customer who complained] (Ep. 4)

  Guest Role
• 
  Takamatsu Saki

  Moe [Marika's classmate] (Ep. 4, 9)

  Guest Role
• 
  Okui Shuji

  Fujita [Yu's editor] (Ep. 4, 10)

  Guest Role
• 
  Horiuchi Mitsuharu

  Mitsuru [Marika's father] (Ep. 5)

  Guest Role
• 
  Yoshida Saya

  [Lady who drop her oranges] (Ep. 5)

  Guest Role
• 
  Shimizu Yuya

  [Marika's neighbor] (Ep. 5)

  Guest Role
• 
  Mizukawa Katamari

  [Mysterious man] (Ep. 5-6, 8-9)

  Guest Role
• 
  Ohtani Yukihiro

  ["Rabbit Foods" GM] (Ep. 6)

  Guest Role
• 
  Yuki Saori

  Koga Reiko [Takae's mother] (Ep. 7)

  Guest Role
• 
  Washio Machiko

  Kazuko [Reiko's sister] (Ep. 7)

  Guest Role
• 
  Toda Naho

  Moeko [Kazuko's daughter] (Ep. 7)

  Guest Role
• 
  Sakai Kenta

  [Praying man] (Ep. 7)

  Guest Role
• 
  Hirako Yuki

  [Rion's fan] (Ep. 8)

  Guest Role
• 
  Otsuka Hirota

  [Autograph session usher] (Ep. 8)

  Guest Role
• 
  Takeda Shinji

  Chuzenji Morizo [Coffe shop guest] (Ep. 9)

  Guest Role
• 
  Azumi Shinichiro

  [Himself] (Ep. 10)

  Guest Role
• 
  Shirahata Shinichi

  [Mysterious man] (Ep. 10)

  Guest Role
• 
  Gotsuji Shingo

  (Ep. 2)

  Guest Role

Unknown

• 
  Miyauchi Seri Unknown