Shah Rukh Khan as Om Prakash Makhija / Om Kapoor

Deepika Padukone as Shantipriya / Sandy

Arjun Rampal as Mukesh “Mike” Mehra

Shreyas Talpade as Pappu Master

Kirron Kher as Bela Makhija

Nitesh Pandey as Anwar

Shawar Ali as Shahwar

Yuvika Chaudhary as Dolly

Satish Shah as Partho Roy

Juhi Chawla Mehta as Self (uncredited)

Javed Sheikh as Rajesh Kapoor

Masood Akhtar as Old Dressman (uncredited)

Hrithik Roshan as Self (uncredited)

Preity Zinta as Self (uncredited)

Vishal Dadlani as Special appearance (uncredited)

Abhishek Bachchan as Self (uncredited)

Rishi Kapoor as Self (uncredited)

Subhash Ghai as Self (uncredited)

Amitabh Bachchan as Self (uncredited)

Akshay Kumar as Self (uncredited)

Dharmendra as Self, special appearance in "Deewangi Deewangi" (uncredited)

Priyanka Chopra Jonas as Self, special appearance in "Deewangi Deewangi" (uncredited)

Rekha as Self, special appearance in "Deewangi Deewangi" (uncredited)

Salman Khan as Self, special appearance in "Deewangi Deewangi" (uncredited)

Sanjay Dutt as Self, special appearance in "Deewangi Deewangi" (uncredited)

Mithun Chakraborty as Self, special appearance in "Deewangi Deewangi" (uncredited)

Kajol as Self, special appearance in "Deewangi Deewangi" (uncredited)

Jeetendra as Self, special appearance in "Deewangi Deewangi" (uncredited)

Karisma Kapoor as Self, special appearance in "Deewangi Deewangi" (uncredited)

Malaika Arora as Self, special appearance in "Deewangi Deewangi" (uncredited)

Saif Ali Khan as Self, special appearance in "Deewangi Deewangi" (uncredited)

Rani Mukerji as Self, special appearance in "Deewangi Deewangi" (uncredited)

Sunil Dutt as Appearance in song (Archive footage) (uncredited)

Uday Chopra as Self

Bipasha Basu as Self

Bappi Lahiri as Self

Chunky Pandey as Self

Feroz Khan as Self

Koena Mitra as Self

Karan Johar as Self

Rakesh Roshan as Self

Shabana Azmi as Self

Sanjay Kapoor as Self

Yash Chopra as Self

Ameesha Patel as Self

Dia Mirza as Self

Zayed Khan as Self

Vidya Balan as Self

Tusshar Kapoor as Self

Shilpa Shetty Kundra as Self

Urmila Matondkar as Self

Arbaaz Khan as Self

Dino Morea as Self

Amrita Arora as Self

Aftab Shivdasani as Self

Tabu as Self

Govinda as Self

Bobby Deol as Self

Lara Dutta as Self

Ritesh Deshmukh as Self

Farah Khan as Self

Suniel Shetty as Self

Gauri Khan as Self

Mushtaq Sheikh as Roadside sleeper

Kareena Kapoor Khan as Walks past on red carpet (uncredited)

Lin Laishram as Om Kapoor's Friend (cameo)

Nassar Abdulla as