Himouto! Umaruchan Umaru and Christmas and New Year's (2015– ) Online
- Original Title :
- Umaru and Christmas and New Yearu0027s
- Genre :
- TV Episode / Animation / Comedy
- Year :
- 2015–
- Directror :
- Kenichi Imaizumi,Masahiko Ôta
- Cast :
- Aimi Tanaka,Kenji Nojima,Akari Kageyama
- Writer :
- Kyle Jones,Takamitsu Kono
- Type :
- TV Episode
- Time :
- 24min
- Rating :
- 7.8/10
In the Doma household, winter means lazy days beneath the kotatsu! Umaru reflects on her interesting year while Taihei tries to collect on a promise she made to him.
| Episode credited cast: | |||
 | Aimi Tanaka | - | Umaru Doma (voice) |
| Kenji Nojima | - | Taihei Doma (voice) |
| Akari Kageyama | - | Nana Ebina (voice) |
| Haruka Shiraishi | - | Kirie Motoba (voice) |
| Yurina Furukawa | - | Sylphynford Tachibana (voice) |
| Hiroki Yasumoto | - | Takeshi Motoba (voice) |
| Ami Koshimizu | - | Kanau (voice) |
| Himika Akaneya | - | Female Announcer (voice) |
| Ikuto Kanemasa | - | Reporter (voice) |
| Miyu Tomita | - | Girl (voice) |
| Toshiki Kurosawa | - | Shop Clerk (voice) |
| Hiroki Maeda | - | Subordinate (voice) |
| Rest of cast listed alphabetically: | |||
 | Jason Douglas | - | Takeshi 'Bomber' Matoba (voice) |
 | Maggie Flecknoe | - | Kanau Kongou (voice) |
| Scott Gibbs | - | Alex Tachibana (voice) |