John Abraham
Dr. Akash "Akki" Bhatnagar
Tara Sharma
Dr. Maya Bhatnagar
Mahima Chaudhry
Tanya
Zohra Sehgal
Sister Martha
Rajendranath Zutshi
Moses
Shreya Ghoshal
special appearance in song "Har Taraf"
Akshita Mutreja
special appearance in the end as Akash's daughter