O-Negative_
"The same group of friends, same blood type and same lover."
A group of five teenagers of the same blood-type 'O' become friends at art college. Prim has a crush on bad boy Art, while her friend Foon likes quiet Puen. The five form a band and survive freshman initiation rituals, but conflict erupts when romances break up the group's harmony.
Starring
Tata Young, Manaswee Krittanookul, Ray MacDonald
Updated Feb 16, 2026
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Year context
O-Negative was released 28 years ago in 1998.
Overview
A group of five teenagers of the same blood-type 'O' become friends at art college. Prim has a crush on bad boy Art, while her friend Foon likes quiet Puen. ...
O-Negative is a Drama, Romance film with a runtime of 1h 48m.
CAST (20)
Tata Young
Prim
Manaswee Krittanookul
Foon
Ray MacDonald
Art
Shahkrit Yamnarm
Puen
Sriphan Chunechomboon
Chomphu
Penpak Sirikul
Prim's Mother
TS
Thamapat Seengamrat
Foon's Father
TJ
Thorung Jarungkijanan
Foon's Mother
PM
Praphot Mayura
Puen's Father
Duangdao Jarujinda
Puen's Mother
KN
Khomsan Nanthajit
Koe
CB
Chayaporn Bunnag
Auan
TC
Tharawit Chittjai
Ong-art
SR
Siranat Ratchusanti
Mekin
CM
Chaithat Mettichavalit
Jeab
SK
Soisuda Kokpong
Nian
AW
Arun Wacharasawat
Ong-art's Father
KC
Kumaree Chinnawat
Ong-art's Mother
Songsit Rungnopakunsi
Nid
Duangkamol Limcharoen
Editor
DETAILS
FREQUENTLY ASKED QUESTIONS
What is O-Negative about?
A group of five teenagers of the same blood-type 'O' become friends at art college. Prim has a crush on bad boy Art, while her friend Foon likes quiet Puen. The five form a band and survive freshman initiation rituals, but conflict erupts when romances break up the group's harmony.
How long is O-Negative?
O-Negative has a runtime of 108 minutes (1h 48m).
Who stars in O-Negative?
The cast of O-Negative includes Tata Young, Manaswee Krittanookul, Ray MacDonald, Shahkrit Yamnarm, Sriphan Chunechomboon.
What is the rating of O-Negative?
O-Negative has a rating of 3.0 out of 10 based on 2 votes on TMDB.
GENRES (2)
Drama
Romance