Vidya Balan...... Tehzeeb Hussain Raina
John Abraham...... Ashutosh Raina
Govinda...... Raju aka Taxiwala
Shannon Esrechowitz...... Stephanie aka Dreamgirl
Priyanka Chopra...... Kkamini
Salman Khan...... Rahul
Akshaye Khanna...... Shiven Dungarpur
Ayesha Takia Azmi...... Gia Bakshi
Sohail Khan...... Ramdayal
Eesha Koppikhar...... Phoolwati
Anil Kapoor...... Vinay Malhotra
Juhi Chawla...... Seema Bakshi Malhotra
Anjana Sukhani...... Anjali
Karan Johar...... voiceover (as himself)
Aroon Bakshi...... Satpal
Tinu Anand...... Babu
Vrajesh Hirjee...... Prem
Viju Khote...... Amar
Prem Chopra...... Maj. Gen. Bakshi
Mangal Kenkre...... Mrs. Bakshi
Kamini Khanna...... Pammi Chaddha
Manoj Pahwa...... Surjit Chaddha
Atul Parchure...... Sukhi
Kushal Punjabi...... Rohit Chaddha
Deepak Qazir...... Joshi
Saurabh Shukla...... Dotcom
Vishal Malhotra...... Shiven's friend
K K Raina...... Tehzeeb's father
Navni Parihar...... Tehzeeb's mother
Bina Kak
Anang Desai...... Ashutosh's father