Dr. Gloria Nathan - Oz

Main cast, played by Lauren Vélez

Episode 2x01: The Tip (Jul 11, 1998)
Episode 2x02: Ancient Tribes (Jul 20, 1998)
Episode 2x03: Great Men (Jul 27, 1998)
Episode 2x04: Losing Your Appeal (Aug 3, 1998)
Episode 2x05: Family Bizness (Aug 10, 1998)
Episode 2x06: Strange Bedfellows (Aug 17, 1998)
Episode 2x07: Animal Farm (Aug 24, 1998)
Episode 2x08: Escape from Oz (Aug 31, 1998)
Episode 3x01: The Truth and Nothing But... (Jul 14, 1999)
Episode 3x02: Napoleon's Boney Parts (Jul 21, 1999)
Episode 3x03: Legs (Jul 28, 1999)
Episode 3x04: Unnatural Disasters (Aug 4, 1999)
Episode 3x05: U.S. Male (Aug 11, 1999)
Episode 3x06: Cruel and Unusual Punishments (Aug 18, 1999)
Episode 3x07: Secret Identities (Aug 25, 1999)
Episode 3x08: Out o' Time (Sep 1, 1999)
Episode 4x01: A Cock and Balls Story (Jul 12, 2000)
Episode 4x02: Obituaries (Jul 19, 2000)
Episode 4x03: The Bill of Wrongs (Jul 26, 2000)
Episode 4x04: Works of Mercy (Aug 2, 2000)
Episode 4x05: Gray Matter (Aug 9, 2000)
Episode 4x06: A Word to the Wise (Aug 16, 2000)
Episode 4x08: You Bet Your Life (Aug 30, 2000)
Episode 4x10: Conversions (Jan 14, 2001)
Episode 4x11: Revenge is Sweet (Jan 21, 2001)
Episode 4x12: Cuts Like a Knife (Jan 28, 2001)
Episode 4x13: Blizzard of '01 (Feb 4, 2001)
Episode 4x14: Orpheus Descending (Feb 11, 2001)
Episode 4x15: Even the Score (Feb 18, 2001)
Episode 4x16: Famous Last Words (Feb 25, 2001)
Episode 5x01: Visitation (Jan 6, 2002)
Episode 5x02: Laws of Gravity (Jan 13, 2002)
Episode 5x03: Dream a Little Dream of Me (Jan 20, 2002)
Episode 5x04: Next Stop: Valhalla (Jan 27, 2002)
Episode 5x05: Wheel of Fortune (Feb 3, 2002)
Episode 5x06: Variety (Feb 10, 2002)
Episode 5x07: Good Intentions (Feb 17, 2002)
Episode 5x08: Impotence (Feb 24, 2002)
Episode 6x01: Dead Man Talking (Jan 5, 2003)
Episode 6x02: See No Evil, Hear No Evil, Smell No Evil (Jan 12, 2003)
Episode 6x03: Sonata de Oz (Jan 19, 2003)
Episode 6x04: A Failure to Communicate (Jan 26, 2003)
Episode 6x05: 4 Giveness (Feb 2, 2003)
Episode 6x06: A Day in the Death... (Feb 9, 2003)
Episode 6x07: Junkyard Dawgs (Feb 16, 2003)
Episode 6x08: Exeunt Omnes (Feb 23, 2003)

Guest cast, played by Lauren Vélez

Episode 1x01: The Routine (Jul 12, 1997)
Episode 1x04: Capital P (Jul 28, 1997)
Episode 1x06: To Your Health (Aug 11, 1997)
Episode 1x07: Plan B (Aug 18, 1997)