The finale of their megahit sitcom airs tonight.
And the stars of The Big Bang Theory shone on Thursday as they arrived en masse for an appearance on The Late Show With Stephen Colbert.
The high profile cast were led by show's breakout stars Kaley Cuoco and Jim Parsons.
Spot the star! The stars of The Big Bang Theory shone on Thursday as they arrived en masse for an appearance on The Late Show With Stephen Colbert
Kaley, 33, wore a polkadot ensemble, matching her black and white skirt to the similarly spotted blouse.
On her feet she wore black leather low-heeled shoes.
The blonde beauty wore her wavy blonde tresses in a low, loose pony tail and had applied distinctive cats eye makeup.
Going dotty: Kaley Cuoco, 33, wore a polkadot ensemble, matching her black and white skirt to the similarly spotted blouse
Meow: The blonde beauty wore her wavy blonde tresses in a low, loose pony tail and had applied distinctive cats eye makeup
Jim, 46, meanwhile was dapper in a blue tartan suit with matching shirt and tie.
On his feet, the Young Sheldon executive producer wore a pair of patent leather shoes.
On his face the actor wore a pair of dark-rimmed glasses.
Sheldon himself: The blonde beauty wore her wavy blonde tresses in a low, loose pony tail and had applied distinctive cats eye makeup
Specs appeal: On his face the actor wore a pair of dark-rimmed glasses