Cast
Crew
| Lenaa | Acting | Actor |
| Aadukalam Murugadoss | Acting | Actor |
| R. N. R. Manohar | Acting | Actor |
| Jaffer Idukki | Acting | Actor |
| Rishikanth | Acting | Actor |
| A. Azhagan | Camera | Director of Photography |
| AIM Sathish | Crew | Public Relations |
| Airport Raju | Costume & Make-Up | Makeup Artist |
| Akshara Premnath | Costume & Make-Up | Costume Design |
| Anu Vardhan | Costume & Make-Up | Costume Design |
| Aravendraj Baskaran | Production | Executive Producer |
| Chandrakanth H | Writing | Dialogue |
| GS Viknesh | Directing | Director |
| GS Viknesh | Writing | Dialogue |
| GS Viknesh | Writing | Writer |
| Gnanaraj | Directing | Co-Director |
| Gopal Balaji | Editing | Colorist |
| Hari Haran | Sound | Sound Designer |
| Harihara Suthan | Visual Effects | VFX Supervisor |
| K Raj | Camera | Still Photographer |
| K Selvam | Costume & Make-Up | Costumer |
| K. R. Dharan | Writing | Lyricist |
| M. R. Rajakrishnan | Sound | Sound Mixer |
| Mohan Rajan | Writing | Lyricist |
| Puthiyaparithi | Writing | Dialogue |
| R. K. Selva | Editing | Editor |
| Rajaraman R | Production | Production Executive |
| Rajesh Giriprasad | Writing | Lyricist |
| S M Sirajudeen | Production | Production Executive |
| S. R. Prabu | Production | Producer |
| S. R. Prakashbabu | Production | Producer |
| Sachin Sudhakaran | Sound | Sound Designer |
| Sathees Kumar | Art | Art Direction |
| Sudesh | Crew | Stunt Coordinator |
| Sudesh | Crew | Fight Choreographer |
| Thanga Prabaharan R | Writing | Creative Producer |
| Vishal Chandrasekhar | Sound | Original Music Composer |
| Yuvraj Ganesan | Production | Publicist |
Titles
O2 · Oxygen · O2: Oxygen
Ratings: imdb 5.60/10.00 (2,474 votes) · tmdb 4.40/10.00 (7 votes)