Shahid Kapoor: He was offered the lead role in Style which was later played by Sharman Joshi. Shahid refused to do the film and made his entry with Ishq Vishk
Priyanka Chopra: Before The Hero:Love Story of a Spy, PeeCee was offered Humraaz. Later, Amisha Patel played the role
Preity Zinta: The Dimple girl, was supposed to make her debut with a Shekhar Kapoor directorial film, which never went on floor. Dil Se... marked her debut
Diana Penty: Before Nargis Fakri, Diana was offered the role of Heer Kaul in Rockstar, due to her other work commitments, the actress could not sign the film
Aishwarya Rai: The role of Karisma Kapoor in Raja Hindustani was offered to Aish which she had to refuse. Later she entered into Bollywood with Aur Pyar Ho Gaya
Ankita Lokhande: In Shah Rukh Khan starrer Happy New Year, Ankita was offered with a role which she turned down. She will now make her debut with Manikarnika
Saif Ali Khan: Kajol starrer Bekhudi was supposed to mark the debut of Saif. Due to his unprofessional attitude. Later, the makers chose Kamal Sadanah
Shraddha Kapoor: Salman Khan starrer Lucky: No Time for Love was first offered to Shraddha which she refused. Years later, she made her debut with Teen Patti
Bipasha Basu: For film Himalay Putra, Bipasha was offered the lead role opposite Akshay Khanna. She refused to do the film as thought she was too young then
Kareena Kapoor: Hum Dil De Chuke Sanam was supposed to mark the debut of Bebo. She was offered Kaho Naa... Pyar Hai which never happened.
Lara Dutta: She was offered two Hollywood films of The Matrix series, but Lara opted to make her debut in Bollywood with Andaaz
Sidharth Malhotra: The Aiyaary star was first offered a role opposite Priyanka in Fashion, which was later played by Arjan Bajwa after Sidharth turned it down.
Katrina Kaif: Before Tara Sharma, Katrina was supposed to play female lead in Saaya. The makers later replaced the actress and she had to make her debut Boom
These actors were supposed to enter into Bollywood with these films, which never happened, instead they marked their debuts with some other films