Cast Credits Proof (2004) Guest starring as Conor Kellly Episode 1x01: Episode 1 (Jan 5, 2004) The Clinic (2003) Guest starring as Richie Sweeney (6 episodes) Episode 6x04: Episode 4 (Oct 19, 2008) Episode 5x09: Episode 9 (Nov 25, 2007) Episode 5x08: Episode 8 (Nov 18, 2007) Episode 5x07: Episode 7 (Nov 11, 2007) Episode 5x05: Episode 5 (Oct 28, 2007) Episode 1x01: Episode 1 (Oct 12, 2003) View 3 more View 3 less