David E. Kelley is the executive producer of "The Crazy Ones," a single-camera show starring Williams and Gellar as father-daughter co-workers.
The show marks a return to television for the two film stars.
Williams began his career on the sitcom "Mork & Mindy" while Gellar became a horror icon for playing the title character in the small-screen version of "Buffy the Vampire Slayer."
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