Jordan Pairs and Jordan triple systems are an extension of Jordan algebras and ternary rings. They are principal algebraic structures in Jordan Theory and nonassociative algebra. Jordan pairs arise in a natural way in the geometry of bounded symmetric domains. O. Loos proved a strong dependence between homogeneous circled domains, in finite-dimensional complex vector spaces, and Jordan pairs. Operators defined on Jordan pairs play prominent role in their study specially in the case of normed or Banach-Jordan Pairs. In this situation, the automatic continuity of these operators together with their structures in some classes of Jordan Pairs arise as an interesting problem in a branch of functional analysis.