Mark Corrigan is a fictional character from the British television series Peep Show, which aired from 2003 to 2015. He is portrayed by actor David Mitchell and is known for his neurotic personality and awkward social interactions. Mark works in a corporate job and often struggles with his romantic relationships and friendships. Throughout the series, Mark's character is defined by his obsessive nature and his tendency to overthink situations. He shares a flat with his best friend Jeremy Usbourne, played by Robert Webb, whose carefree attitude contrasts sharply with Mark's more serious demeanor. This dynamic creates comedic tension and highlights Mark's insecurities.