Born in Vernal, Utah, Dana started his career as a runway and photographic model in the late 1950s. After occasionally appearing in minor roles in a number of B-movies, he moved to Italy to pursue an acting career. In the second half of the 1960s starred in a number of genre films, mainly Eurospy and Spaghetti Western films, often credited as Robert Mark.
In 2003 Dana wrote a novel, Conversations with the Devil: Dialogues with the Soul, under the pen name Jon Christian Eagle.
Handle with Care.