Many South Indian actors have friendships that date back a long time. We come to hear about it after ever so many years. One such instance that I came across recently is Vishnuvardhan and Kamal. In an interview where he talks about various things, the Kannada movie superstar mentions Kamal a couple of times. He also comes up with the hitherto-unknown fact (atleast to me!) that he featured in Marudhanayagam! Excerpts:

It was the era of Bruce Lee. The only two artistes who learnt martial arts were Kamal Hasan and myself. The stunt masters utilised our talent. The audiences lapped it up.

You did do a cameo in the shelved “Marudhanayakam” directed by Kamal.
I played Wajid Khan. It was a pleasure because we entered the industry together. He respects me and his passion for cinema is amazing.

Check out the wonderful interview by S Shivakumar.