Frequently plays characters of a scientific nature such as doctors or professors.
In The Other Guys (2002), Billingsley plays a scientist with a fascination with Star Trek (his character states he
dresses up as a Vulcan at Star Trek conventions). In Star Trek: Enterprise (2001), Billingsley plays the medical officer Dr. Phlox, whose
shipmate is a Vulcan named T'Pol.
Born in Media, Pennsylvania, and raised in Weston, Connecticut.