- Natsuki Hanae
- Roma Kamogawa
- Yûki Kaji
- Hokuto 'Toto' Mitarai
- Ayumu Murase
- Shizuku 'Drop' Sakuma
- Kana Hanazawa
- Chibori Urayasu
- Rino Sashihara
- Mako Kamogawa
- Atsushi Tamura
- Taro Kamogawa
- Barbara Goodson
- Mrs. Ando
- Victoria Grace
- Tivoli
- Alan Lee
- Roma's Father
- Jonathan Leon
- Drop
- Adam McArthur
- Roma
- Stephanie Sheh
- Roma's Mother
- Laura Megan Stahl
- Toto's Sister
- Nick Wolfhard
- Toto
