David McCallum’s transformation from the charming Russian spy Illya Kuryakin in “The Man from U.N.C.L.E.” to the enigmatic time agent Steel in “Sapphire & Steel” showcased his versatile acting prowess, carving a niche in both spy thriller and science fiction genres, and ensuring his lasting legacy within the hearts of audiences globally. David McCallum had … Continue reading From Illya Kuryakin to Donald Mallard via Steel: The Enduring Legacy of David McCallum