Lucifer is intimidating and scaryHe's extremely overprotective of his brothers, and despite his harsh treatment of them, is shown to display a great love for them.
Mammon is shown to be confident and arrogant, with a love for money that borders on obsession.
Beel is always hungry.
Santan is harsh, and cold but he truly cares about his brothers.
Beel is caring, eats a lot
Belfie not bothered, sleepy, cares 
Asmo is teasing, caring, obsession with makeup and looks