Ayalaan ( transl. Alien) is a 2024 Indian Tamil-language science fiction film directed by R. Ravikumar and produced by KJR Studios. The film stars Sivakarthikeyan and Rakul Preet Singh in the lead roles, alongside Sharad Kelkar, Isha Koppikar, Karunakaran, Yogi Babu, David Broughton-Davies, Bhanupriya and Bala Saravanan, with Siddharth voicing the titular role. It follows a man who teams up with an alien to stop a rogue scientist from making a deadly Nova gas which would endanger the Earth.