Aamir Khan as Laal Singh Chaddha

Kareena Kapoor Khan as Rupa D'Souza

Naga Chaitanya Akkineni as Balaraju Bodi

Mona Singh as Gurpreet Kaur (Laal's mother)

Manav Vij as Mohammad bhai

Kamini Kaushal as Old lady on train

Ahmad Ibn Umar as Young Laal

Hafsa Ashraf as Young Rupa

Gitikka Ganju Dhar as Manjeet maasi

Rohaan Singh as Aman Chaddha

Shah Rukh Khan as Shah Rukh Khan

Aarya Sharma as Lady in train

Nazneen Madan as Lady in train

Arun Bali as Sardarji in train

Jagat Rawat as School Principal

Harry Parmar as Abbas Haji

Shrikant Verma as Sports coach

Guneet Singh Sodhi as Harry (Rupa's boyfriend)

Shiv Panditt as Captain Sandeep

Yuri Suri as Commanding officer

Sowmyashree Belur as Bala's wife

Karim Hajee as Gurfateh Singh