Ron Sproat was a graduate of Hamilton College. Sproat later earned a MA degree from the University of Michigan. Sproat also attended the Yale School of Drama and received a MFA degree. Sproat first met and worked with Jonathan Frid while studying at Yale.
Ron Sproat's earliest television credts included United States Steel Hour and General Motors Presents.
Sproat began writing for Dark Shadows in 1966, with his first credit being in November with episode 94. When it came time to start casting the vampire character, he immediately thought of Jonathan Frid and suggested him. Dan Curtis was unable to personally oversee the casting of the vampire, as he was in London preparing his production of The Strange Case of Dr. Jekyll and Mr. Hyde. Curtis was sent two packages photographs, one of standard head-shots and another of an actor on stage. Curtis chose the actor on stage, Jonathan Frid. Frid met with Sproat after he got the part, and had discussions about the character. Curtis later expressed dissatisfaction with Frid's appearance after meeting him.
Sproat later wrote for the Canadian supernatural soap opera Strange Paradise.