Return of Keenan Wynn as Capt. Joe "Mad Dog" Siska. Normally, Kolchak faced off against a different authority figure on the police force each week. Wynn was the only actor to return and play the same character twice (first appearance was in "The Spanish Moss Murders). Actor Ramon Bieri also made a return appearance as a police officer, but he played a different character each time.
If you look closely Carolyn Jones has the same hairstyle that she had in The Adventure of the Hardhearted Huckster (1976).
When Kolchak is talking to a student in an apartment house the student asks Kolchak if he was ever in a war. Kolchak tells him a few. Which means Kolchak served in the Second World War and the Korean War.
In this episode near the end of the show the campus newspaper reporter is talking on the phone and the line light is illuminated on the telephone. When she hangs the phone up the light never goes out.
Body count: 3 (includes the succubus)