How do you say my brother's keeper in spanish?

Answer 1

"They are my brothers" = "[Ellos] Son mis hermanos."

"He is my brother" = "Él es mi hermano"

Remember the H is silent in Spanish and the LL sounds like an English LY or J (depending on where in the Spanish-speaking world you are)

Answer 2

Soy el guardian de mi hermano (:

Answer 3

Para mi y mi hermano

Answer 4

You would say "Este es mi hermano".