क्यों! हो गया ना...

Rati Agnihotri as Sulochana Khanna Gaurav Gera as Vinay Kajal Agarwal as Diya's Friend Arjun Mathur as Sumi (cameo) Rahul Singh as Banna/Ranveer Singh Dia Mirza as Preeti Jennifer Winget as Diya's Friend Aishwarya Rai Bachchan as Diya Malhotra Vivek Oberoi as Arjun Khanna Amitabh Bachchan as Diya's Uncle Suniel Shetty as Ishaan Om Puri as Mr. Khanna Tinnu Anand as Malhotra Anupama Kumar

Udit Narayan Playback Singer Samir Chanda Art Direction Vaibhavi Merchant Choreographer Dominique Cerejo Playback Singer Susheel Peris Digital Compositor Loy Mendonsa Original Music Composer, Playback Singer Shankar Mahadevan Playback Singer, Original Music Composer Javed Akhtar Lyricist Ehsaan Noorani Original Music Composer Javed Ali Playback Singer Vijay Prakash Playback Singer Sudeep Chatterjee Director of Photography Resul Pookutty Sound Designer Vivek Oberoi Screenplay, Dialogue Sunidhi Chauhan Playback Singer Boney Kapoor Producer Mahalaxmi Iyer Playback Singer Shaan Playback Singer Raju Sundaram Choreographer Milap Zaveri Screenplay, Dialogue Sadhana Sargam Playback Singer Arjun Mathur Assistant Director Perry Costello Special Effects Coordinator