| Starred in Krishna Shah's shelved project " TAJ" opposite Kareena Kapoor.The film was to be based on the Taj Mahal. The film folded up during the scripting process in 2000. |
| Uncle to actor Gautam Kanthadai. |
| When Anil Kapoor was approached for Taal, he suggested to Subhash Ghai that only Kamal Hassan suited the role. |
| Rajkumar Santoshi wrote Ghayal and Ghatak for Kamal Hassan. Due to no producer's willing to back the film , he changed the star cast. |
| His favorite actor is Nagesh. His other 3 favorite actors include Shivaji Ganesan, M.G. Ramachandran, Rajesh Khanna. He respected Genmini Ganesan immensely. |
| Kamal Hasan became the first Indian actor to get a 1 crore as his salary for a single film in 1994. It was Rajesh Khanna who was alone the highest paid Indian actor in India from 1970-1987 and Amitabh shared the status of being highest paid Indian actor with Rajesh Khanna from 1980-87 and Kamal Hasan became alone the highest paid Indian actor from 1988-1998 and shares the same tag of highest paid Indian actor with Rajnikanth from 1999-2013. |
| Former partner of actress/dancer Vani Ganpati. |
| Did daredevil stunts for the film, Abhay (2001), where he did bungee jumping. Severely injured his back whilst filming. |
| Met action superstar Jackie Chan for the first time, when the latter came to the audio launch of Hassan's latest thriller, Dasavatharam in April of 2008. Hassan confessed to have been a huge fan of Chan, and admitted at the audio launch that he had during his career, tried emulating Jackie Chan's stunts, resulting in 32 fractures to his body. |
| Has acted in Tamil, Telugu, Kannada, Malayalam, Bengali and Hindi films. |
| Trained in the classical Indian dance form of Bharatanatyam. |
| Seven movies that he has starred in have been sent to represent India in Oscars for Best foreign movie category, highest by any Indian. |
| Gets his wife/girlfriend to do costumes for his films |
| Has two daughters, Shruti K. Haasan and Akshara. |
| Is a very very strong fan of Ilayaraja and always ropes him as the composer for all his home productions |
| Is the only actor to have earned a Best Actor in a Leading Role award and a Best Actor in a Supporting Role nomination for the same movie (Saagar (1985)) at Filmfare Awards. |
| On April 27 2002 Kamala Haasan was detained at Toronto airport and denied boarding his flight to L.A. because he had an Arab name/look and was considered a potential terrorist. |
| Kamal's hobby is magic |
| His innovative acting has earned him the title "the first, and perhaps the last, complete hero in Indian Cinema" |