Thiruvonam is a 1975 Indian Malayalam film, directed by Sreekumaran Thampi and produced by K. P. Mohanan. The film stars Prem Nazir, Sharada, Kamal Haasan and Jayasudha in the lead roles. The film has musical score by R. K. Shekhar and songs composed by M. K. Arjunan.
| Actor | Role |
|---|---|
 Prem NazirNot listed | Not listed |
 SharadaNot listed | Not listed |
 Kamal HaasanNot listed | Not listed |
 JayasudhaNot listed | Not listed |
 M G SomanNot listed | Not listed |
 SujathaNot listed | Not listed |
 Kaviyoor PonnammaNot listed | Not listed |
 Sreelatha NamboothiriNot listed | Not listed |
 T. S. MuthaiahNot listed | Not listed |
 K P UmmerNot listed | Not listed |
 Adoor BhasiNot listed | Not listed |
 KPAC LalithaNot listed | Not listed |
 Cochin HaneefaNot listed | Not listed |
 KaranNot listed | Not listed |
| SSumathiNot listed | Not listed |
 PhilominaNot listed | Not listed |
 Dominic AlummoodanNot listed | Not listed |
 Jagathy SreekumarNot listed | Not listed |
 VincentNot listed | Not listed |
 Prathapa ChandranNot listed | Not listed |