They are not real Islam divisions. They are just different schools. Mainly they are Sunnis and Shiites. Refer to question below.
Sunni
Fawad Khan is Shia
yes, it is confirmed, he is shia
Sunni
there were sunni and extremely anti shia and killed shia Imams.
Shia
Shia.
Sahrukh khan I think he is Shia.
Shia
Shia.
He is shia.