United Kingdom, Nov. 5 -- Kunal Nayyar won't rule out a Big Bang Theory reunion - but believes it's too soon for the show to return.

The British-Indian actor played astrophysicist Raj Koothrappali on the long-running CBS sitcom which also starred Johnny Galecki as Leonard Hofstadter, Jim Parsons as Sheldon Cooper, Kaley Cuoco as Penny and Simon Helberg as Howard Wolowitz.

The popular comedy - which celebrated nerd culture and science - ran for 12 seasons and 279 episodes from 2007 to 2019, and although there is a huge clamour for the characters to return, Kunal thinks it is just a little too soon for the cast to get back together.

Speaking exclusively BANG Showbiz at the Christmas Lights switch on at The London eye on Tuesday night (04...