The Creeper

The Creeper is a 1948 American horror film directed by Jean Yarbrough. The film stars Onslow Stevens who plays a mad doctor whose serum turns a man into a catlike killer. Plot Two scientists on an expedition to the West Indies discover a serum which changes humans into cats, or. at least, to catlike killers. One believes they should continue with their experiments and the other does not, which disagreement costs him his life. Several deaths occur before the first scientist is halted in his mad plans. Cast Production Between 1947 and 1951, Hollywood studios made almost no horror films with The Creeper being the lone exception. It was developed under the working title The Cat Man and was in production from the beginning of March 1948 to the middle of the month.