Apart from Aamir and Kareena, the film features Naga Chaitanya, Mona Singh, and Manav Vij in the leading roles. Son of South superstar Nagarjuna Akkineni, Naga Chaitanya makes his Bollywood debut with Laal Singh Chaddha portraying an army officer named Balaraju Bodi.
Before Laal Singh Chaddha, Advait Chandan made his directorial debut with the 2017 drama Secret Superstar which starred Aamir Khan in the supporting role with Zaira Wasim, Meher Vij, and Raj Arun playing the leading roles.