Cast & crew
Grade 4 (No Lines) (1983)
Directed by Manu Wannayok
Cast
| Suriwan Suriyong | Panit |
| Thitima Sangkhaphithak | Wan Jung |
| Manop Aussawathep | Yot |
| Sarinthip Siriwan | Headmaster Hargrove |
| Sorapong Chatree | Leu |
| Somsak Chaisongkram | |
| Pipop Pupinyo | |
| Sarinthip Siriwan | |
| Kowit Wattanakul | |
| Bamrer Phongintakun | Ilona's Friend |
| Panna Rittikrai | Ilona's Friend |
| Metta Roongrat |
Crew
| Manu Wannayok | Director |