Rajendranath has so far acted in 72 films. Out of which he has donned the role of police officer in 60 films. His mustache is the reason for him getting the police roles. First one to utilize him was Vijayakanth. He was a given a role of police officer in the film Ramana directed by A R Murugadoss. He also did the police officer role in the film Sami directed by Hari. This film gave him a permanent address. After that he was flooded with police officer roles. He is happy to say that his 6.3 feet height and personality has fetched him these roles. A
fter acting in Nan Kaduval directed by Bala, he has started getting roles in other language films. He has acted in the Malayalam film Robin Hood directed by Joshi, Telugu film High School and in Kannada film Maandal Patti. Now he is got the offer to act in a Hindi film which has Amitabh Bachchan in the lead role. This film is being directed by Meera Nair.