The Orthodox Church is evangelical, but not Protestant. It is Orthodox, but not Jewish. It is Catholic, but not Roman. It is not non-denominational, it is pre-denominational. It has been believed, taught, preserved, defended, and died for. It is the Faith that has established the universe.
The Orthodox Church is a family of “autocephalous” (self-governing) churches, with the Ecumenical (universal) Patriarch of Constantinople holding titular or honorary primacy (the first among equals). The Orthodox Church is not a centralized organization headed by a pontiff. The unity of the Church is rather manifested in common faith and communion in the sacraments, no one but Christ himself is the real head of the Church. The number of autocephalous churches has varied in history.
Orthodoxy means “right opinion” or “right belief”, so any one following the right faith can be called orthodox.
The Orthodox Church is One, Holy and Catholic. The Orthodox Church is for everyone, regardless of ethnicity.