Prem: rich spoilt brat doesn't stay with his parents, stays in his own apartment, always thinks he is right, an intern at Sanjeevani.
Preet: used to be prem's best friend but the only people who know are prem and preet, stays with his older sister Kulraaj and aunt and uncle, moved away after high school but came back for his intership at Sanjeevani which is relationship with prem changes.
Harman: a very strict hardworking guy, his dream was always to become the best and greatest doctor, always put his work first, preet and him become friends when they meet each other at Sanjeevani.
Kiran: a very naughty, funny guy, lives with prem in his apartment always wants to bring a smile to every ones face also a intern at Sanjeevani.
Heer: is the daughter of one of the dean of Sanjeevani, is meher's best friend mehers dad and heer's dad are best friend and they decided to build sanjeevni together and also they all live together in the same house in which meher and heer grew up together, a very outgoing girl always stands by for her friends.
Meher: is the daughter of the other dean of Sanjeevani, heer's best friend friend mehers dad and heer's dad are best friend and they decided to build sanjeevni together and also they all live together in the same house in which meher and heer grew up together, loves to always bring a smile to everyone's faces.
Ash: is a very modern outspoken girl, at first didn't get along with the other intern girls but slowly she became friends with them, at first she had an eye on Preet, she also wanted him but later she fell in love with Harman.
Kulraaj: preets older sister, preet and kulraaj's parents passed away 5 years ago and they live with their aunt and uncle, they have everything but Kulraaj always feels that something is mssing in her life, is an intern at sanjeevani and also is very good friends with meher and heer.