Kal Ho Naa Ho

Shah Rukh Khan

(Aman Mathur)

Preity Zinta

(Naina Catherine Kapur)

Saif Ali Khan

(Rohit Patel)

Jaya Bachchan

(Jennifer Kapur)

Sonali Bendre

(Dr. Priya)

Reema Lagoo

(Aman's Mother)

Satish Shah

(Kursann bhai Patel)

Rajpal Yadav

(Guru)

Sushma Seth

(Lajjo Kapur)

Delnaaz Irani

(Jasprit Kapoor)

Lillete Dubey

(Jaswinder Kapoor)

Simone Singh

(Camilla)

Shoma Anand

(Lajjo Kapur's Sister)

Ketki Dave

(Rohit's Mother)

Dara Singh

(Pritam Chaddha)

Sulabha Arya

(Kanta Bhen)

Anaita Shroff Adajania

(Geeta Parekh)

Farah Khan

(Customer in Jenny's Restaurant)

Sonali Bendre

(Priya (Special Appearance))

Sanjay Kapoor

(Abhay (Special Appearance))

Kajol

(Special Appearance in "Maahi Ve" Song)

Rani Mukerji

(Special Appearance in "Maahi Ve" Song (uncredited))

Uday Chopra

(Special Appearance (uncredited))