Nicholas P. Dallis, American psychiatrist and illustrator (d. 1991)
Nicholas Peter Dallis (December 15, 1911 - July 6, 1991), was an American psychiatrist turned comic strip writer, creator of the soap opera-style strips Rex Morgan, M.D., Judge Parker and Apartment 3-G. Separating his comics career from his medical practice, he wrote under pseudonyms, Dal Curtis for Rex Morgan, M.D. and Paul Nichols for Judge Parker.

Born in New York City, Nick Dallis grew up on Long Island. He graduated from Washington & Jefferson College in 1933 and from Temple University's medical school in 1938 and married a nurse, Sarah Luddy. He decided to specialize in psychiatry, and after World War II, started a practice in Toledo, Ohio. Allen Saunders was chair at the time of the local mental hygiene center that invited him there, and in his autobiography, he recalled that Dallis approached him, as a well-known comics writer (Steve Roper and Mike Nomad, Mary Worth), about "his desire to write a comic strip, one tracing the history of medicine. I told him that, commendable as his idea was, such a feature would not succeed. Readers want entertainment, not enlightenment. But a story about a handsome young doctor's involvement with his patients might be a winner."