Thomas G. Szabo, PhD, BCBA-D, is a professor at Capella University's masters and doctoral behavior analysis programs; an internationally recognized acceptance and commitment therapy (ACT) trainer; a practicing board-certified behavior analyst (BCBA); and a graduate of the University of Nevada, Reno.
Asa Siegel is a classically trained actor with extensive professional stage experience. He is also a highly skilled voice actor across the spectrum, with work including audiobooks, narration, video games, animated television series, promos and trailers, and national television and radio commercials.
Jonathan Tarbox, PhD, BCBA-D, is director of the master of science in applied behavior analysis program at the University of Southern California, as well as director of research at FirstSteps for Kids. He has published four books on autism treatment; is series editor of the Elsevier book series.