John McCafferty is an actor and writer. He was born in Cleveland, Ohio, the USA to American parents. He is raised as Slovak Catholic. His father was a fireman with too many jobs to keep his family financially well. He was a workaholic, used to keep himself busy with work and spared very less time with his family.

His mother, who was a look-alike of Hedy Lamar with glasses, was a supple woman with great childlike character and energy. She was a fortune teller. Her instinct, premonition, and dreams always seemed explicit. John has three sisters.