As a return of favour, Who acted in Ajith's movie in guest role (Ajith acted in guest role for the actor in his prev movie)

Actor Karthik made a guest appearance in Ajith's film 'Kaadhal Mannan' (1998) as a return gesture after Ajith had done a guest role in Karthik's previous film 'Uzhavan' (1996). This was a professional courtesy between the actors. Vijay, Surya, and Murali did not have this specific reciprocal guest arrangement with Ajith.