US network CBS announced Tuesday it has picked up a Robin Williams-Sarah Michelle Gellar workplace comedy series for its 2013-14 schedule. 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.