Karthik Calling Karthik [Hindi]

Vijay Lalwani

Director

Farhan Akhtar

Karthik Narayan

Deepika Padukone

Shonali Mukherjee

Ram Kapoor

Kamath Sir

Shefali Shah

Dr. Kapadia

Vivan Bhatena

Ashish

Vipin Sharma

Landlord

Yatin Karyekar

Boss at Blue Draft Couriers

Taraana Raja

Neelu Didi

Vinay Jain

Siddharth

Siddhartha Gupta

Young Karthik

Swapnel Desai

Young Kumar

Kanchan Pagare

Peon at ACL Office

Brijendra Kala

Telephone Exchange Clerk

Haansaa

Secretary at ACL Office

Khyati Kanchan

Hair Stylist

Vijay Badlani

Colleague at ACL

Abhay Joshi

Phone Salesman Mumbai

Zafar

Karthik's Father

Vijay Lalwani

Writer