Mike Chang - Glee

Glee

Main cast, played by Harry Shum Jr

Episode 3x01: The Purple Piano Project (Sep 20, 2011)
Episode 3x02: I Am Unicorn (Sep 27, 2011)
Episode 3x03: Asian F (Oct 4, 2011)
Episode 3x04: Pot o' Gold (Nov 1, 2011)
Episode 3x05: The First Time (Nov 8, 2011)
Episode 3x06: Mash Off (Nov 15, 2011)
Episode 3x07: I Kissed a Girl (Nov 29, 2011)
Episode 3x08: Hold On to Sixteen (Dec 6, 2011)
Episode 3x09: Extraordinary Merry Christmas (Dec 13, 2011)
Episode 3x10: Yes/No (Jan 17, 2012)
Episode 3x11: Michael (Jan 31, 2012)
Episode 3x12: The Spanish Teacher (Feb 7, 2012)
Episode 3x13: Heart (Feb 14, 2012)
Episode 3x14: On My Way (Feb 21, 2012)
Episode 3x15: Big Brother (Apr 10, 2012)
Episode 3x16: Saturday Night Glee-ver (Apr 17, 2012)
Episode 3x17: Dance with Somebody (Apr 24, 2012)
Episode 3x18: Choke (May 1, 2012)
Episode 3x19: Prom-asaurus (May 8, 2012)
Episode 3x20: Props (May 15, 2012)
Episode 3x22: Goodbye (May 22, 2012)
Episode 4x02: Britney 2.0 (Sep 20, 2012)
Episode 4x05: The Role You Were Born to Play (Nov 8, 2012)
Episode 4x06: Glease (Nov 15, 2012)
Episode 4x08: Thanksgiving (Nov 29, 2012)
Episode 4x09: Swan Song (Dec 6, 2012)
Episode 4x10: Glee, Actually (Dec 13, 2012)
Episode 4x21: Wonder-ful (May 2, 2013)
Episode 4x22: All or Nothing (May 9, 2013)

Guest cast, played by Harry Shum Jr

Episode 1x05: The Rhodes Not Taken (Sep 30, 2009)
Episode 1x06: Vitamin D (Oct 7, 2009)
Episode 1x07: Throwdown (Oct 14, 2009)
Episode 1x08: Mash-Up (Oct 21, 2009)
Episode 1x09: Wheels (Nov 11, 2009)
Episode 1x10: Ballad (Nov 18, 2009)
Episode 1x11: Hairography (Nov 25, 2009)
Episode 1x12: Mattress (Dec 2, 2009)
Episode 1x13: Sectionals (Dec 9, 2009)
Episode 1x14: Hell-O (Apr 13, 2010)
Episode 1x15: The Power of Madonna (Apr 20, 2010)
Episode 1x16: Home (Apr 27, 2010)
Episode 1x17: Bad Reputation (May 4, 2010)
Episode 1x18: Laryngitis (May 11, 2010)
Episode 1x19: Dream On (May 18, 2010)
Episode 1x20: Theatricality (May 25, 2010)
Episode 1x21: Funk (Jun 1, 2010)
Episode 1x22: Journey to Regionals (Jun 8, 2010)
Episode 2x01: Audition (Sep 21, 2010)
Episode 2x02: Britney/Brittany (Sep 28, 2010)
Episode 2x03: Grilled Cheesus (Oct 5, 2010)
Episode 2x04: Duets (Oct 12, 2010)
Episode 2x05: The Rocky Horror Glee Show (Oct 26, 2010)
Episode 2x06: Never Been Kissed (Nov 9, 2010)
Episode 2x07: The Substitute (Nov 16, 2010)
Episode 2x08: Furt (Nov 23, 2010)
Episode 2x09: Special Education (Nov 30, 2010)
Episode 2x10: A Very Glee Christmas (Dec 7, 2010)
Episode 2x11: The Sue Sylvester Shuffle (Feb 6, 2011)
Episode 2x12: Silly Love Songs (Feb 8, 2011)
Episode 2x13: Comeback (Feb 15, 2011)
Episode 2x14: Blame It on the Alcohol (Feb 22, 2011)
Episode 2x15: Sexy (Mar 8, 2011)
Episode 2x16: Original Song (Mar 15, 2011)
Episode 2x17: A Night of Neglect (Apr 19, 2011)
Episode 2x18: Born This Way (Apr 26, 2011)
Episode 2x19: Rumours (May 3, 2011)
Episode 2x20: Prom Queen (May 10, 2011)
Episode 2x21: Funeral (May 17, 2011)
Episode 2x22: New York (May 24, 2011)
Episode 5x03: The Quarterback (Oct 10, 2013)
Episode 5x12: 100 (Mar 18, 2014)
Episode 5x13: New Directions (Mar 25, 2014)
Episode 6x08: A Wedding (Feb 20, 2015)
Episode 6x13: Dreams Come True (Mar 20, 2015)