Season One

Season 1 is the first and premiere season of Regular Show. The series premiere, The Power, aired on September 6, 2010, while the season finale, Mordecai and the Rigbys, aired on November 22, 2010, with a total of 12 episodes aired this season.

Episodes

 * 1) The Power - September 6, 2010 (season/series premiere)
 * 2) Just Set Up the Chairs - September 13, 2010
 * 3) Caffeinated Concert Tickets - September 20, 2010
 * 4) Death Punchies - September 27, 2010
 * 5) Free Cake - October 4, 2010
 * 6) Meat Your Maker - October 11, 2010
 * 7) Grilled Cheese Deluxe - October 18, 2010
 * 8) The Unicorns Have Got to Go - October 25, 2010
 * 9) Prank Callers - November 1, 2010
 * 10) Don - November 8, 2010
 * 11) Rigby's Body - November 15, 2010
 * 12) Mordecai and the Rigbys - November 22, 2010 (season finale)

Trivia

 * This is the first and premiere season of the series.
 * The Guardians of Eternal Youth are introduced in Free Cake.
 * Death Kwon Do makes its first appearance in Death Punchies.
 * Margaret makes her debut appearance in Caffeinated Concert Tickets.