Santhosh Keezhattoor is an Indian film & theatre actor. He had acted in many leading and supportive roles. He won acclaim though doing character roles. Before entering into the film industry, he was working as a theatre artist. and a programme producer. He started his career in Taliparmba a town in Kannur district Kerala

Early life
Santhosh was initiated to the world of drama at the age of five. He became part of Kannur's professional theatre group Sangha Chethana the age of sixteen. He had played major roles in dramas like Sakhavu, Pazhassi Raja, Soorya Pett, Swathanthryathinte Murivukal, Freedom Road, Samaya theeram, Marupuram and Che Guevera. He played the lead role for the first time in Beegum Mary Biswas, a drama promoted by Theatre Vision Kerala. He was actively involved in Kozhikode Chiranthana's Kodeeswaran and Padanilam, KPAC's Innalekalile Aakasam, Thiruvananthapuram Aksharakala's Kottayath Thampuran, Kollam Viswabhavana's Avathara Purushan and Alapuzha Sangha Chithra's Karashaka Rajavu. Santhosh had also directed many school and campus theatre ventures.