While there wasn't a specific show called "Gutthi - 2012," here are some of the actors and actresses who appeared in "Comedy Nights with Kapil" during its run:
Main Cast:
* Kapil Sharma (as himself, the host)
* Sunil Grover (as Gutthi, Dr. Mashoor Gulati, Rinku Bhabhi, etc.)
* Ali Asgar (as Dadi, Nandu)
* Kiku Sharda (as Palak, Bumper, etc.)
* Sumona Chakravarti (as Manju, Bhoori, etc.)
* Krushna Abhishek (as Sapna)
* Siddharth Sagar (as Aakash)
* Rochelle Rao (as herself, a guest)
Recurring Guests:
* Shah Rukh Khan
* Salman Khan
* Akshay Kumar
* Deepika Padukone
* Priyanka Chopra
* Amitabh Bachchan
* Aamir Khan
* Ranbir Kapoor
* Ranveer Singh
* Many more Bollywood celebrities
Important Note:
The cast members and guest stars on "Comedy Nights with Kapil" changed over time. The list above includes some of the most prominent actors and actresses who appeared during the show's run, which started in 2012.