Nicholas R. Waytowich is a machine learning research scientist at the Human Research and Engineering Directorate at the U.S. Army Research Laboratory, Adelphi, MD, 20783, USA. His research interests include human-in-the-loop machine learning, human-autonomy integration, and deep reinforcement learning. Waytowich received a Ph.D. degree in biomedical engineering from Old Dominion University, Norfolk, VA, USA. He is a Member of IEEE and the IEEE Systems, Man, and Cybernetics Society. Contact him at nick.waytowich@gmail.com.