“Countdown” will return to TV on Current June 20, and host Keith Olbermann is lining up a stable of contributors to appear regularly on the program.

TVNewser has learned that filmmaker Michael Moore, documentary filmmaker Ken Burns, comedian Richard Lewis, Daily Kos founder Markos Moulitsas and National Association of Free Clinics executive director Nicole D. Lamoureux are among those on board as contributors.

Update: Olbermann just tweeted that he expects to have around 20 regular contributors in total. More to be announced at a later date.

Update 2: It’s Official, announcement from Current TV after the jump.

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