  We report the discovery of the first identified pulsating DA white dwarf in
the field of the Kepler mission, WD J1916+3938 (Kepler ID 4552982). This ZZ
Ceti star was first identified through ground-based, time-series photometry,
and follow-up spectroscopy confirm it is a hydrogen-atmosphere white dwarf with
an effective temperature = 11,129 $\pm$ 115 K and log g = 8.34 $\pm$ 0.06,
placing it within the empirical ZZ Ceti instability strip. The object shows up
to 0.5 percent amplitude variability at several periods between 800 -- 1450 s.
Extended Kepler observations of this object could yield the best lightcurve,
to-date, of any pulsating white dwarf, allowing us to directly study the
interior of an evolved object representative of the fate of the majority of
stars in our Galaxy.

Solar and Stellar Astrophysics