Mary Is Happy, Mary Is Happy.

Patcha Poonpiriya

Mary

Chonnikan Netjui

Suri

Thanapob Leeratanakachorn

Pakorn

Vasuphon Kriangprapakit

M

Udomporn Hongladdaporn

Kun

Rossarin Ananchanachai

Tim

Awat Ratanapintha

Winai

Wattanapume Laisuwanchai

Asano Jr.

Narissara Thanapreechakul

M's Girlfriend

Kamol Sukosol Clapp

Headmaster

Krissada Sukosol Clapp

Homeroom Teacher

Prabda Yoon

Activities Teacher

Piyamas Muenprasertdee

Nursing Teacher

Kongdej Jaturanrasmee

Drama Teacher

Apichai Tragoolpadetgrai

AV Teacher

Kaynipa Polnikorn

English Teacher

Sasawat Boonsri

Geography Teacher

Nadda Srithongdee

Pregnancy Ethics Teacher