Lois Lane - Smallville

Smallville

Main cast, played by Erica Durance

Episode 5x01: Arrival (Sep 29, 2005)
Episode 5x04: Aqua (Oct 20, 2005)
Episode 5x06: Exposed (Nov 3, 2005)
Episode 5x08: Solitude (Nov 17, 2005)
Episode 5x10: Fanatic (Jan 12, 2006)
Episode 5x11: Lockdown (Jan 19, 2006)
Episode 5x12: Reckoning (Jan 26, 2006)
Episode 5x14: Tomb (Feb 9, 2006)
Episode 5x16: Hypnotic (Mar 30, 2006)
Episode 5x18: Fragile (Apr 13, 2006)
Episode 5x20: Fade (Apr 27, 2006)
Episode 5x21: Oracle (May 4, 2006)
Episode 5x22: Vessel (May 11, 2006)
Episode 6x01: Zod (Sep 28, 2006)
Episode 6x02: Sneeze (Oct 5, 2006)
Episode 6x03: Wither (Oct 12, 2006)
Episode 6x04: Arrow (Oct 19, 2006)
Episode 6x05: Reunion (Oct 26, 2006)
Episode 6x07: Rage (Nov 9, 2006)
Episode 6x10: Hydro (Jan 11, 2007)
Episode 6x11: Justice (Jan 18, 2007)
Episode 6x13: Crimson (Feb 1, 2007)
Episode 6x17: Combat (Mar 22, 2007)
Episode 6x20: Noir (May 3, 2007)
Episode 6x21: Prototype (May 10, 2007)
Episode 6x22: Phantom (May 17, 2007)
Episode 7x01: Bizarro (Sep 27, 2007)
Episode 7x02: Kara (Oct 4, 2007)
Episode 7x05: Action (Oct 25, 2007)
Episode 7x07: Wrath (Nov 8, 2007)
Episode 7x08: Blue (Nov 15, 2007)
Episode 7x09: Gemini (Dec 13, 2007)
Episode 7x11: Siren (Feb 7, 2008)
Episode 7x12: Fracture (Feb 14, 2008)
Episode 7x15: Veritas (Mar 27, 2008)
Episode 7x16: Descent (Apr 17, 2008)
Episode 7x18: Apocalypse (May 1, 2008)
Episode 7x20: Arctic (May 15, 2008)
Episode 8x01: Odyssey (Sep 18, 2008)
Episode 8x02: Plastique (Sep 25, 2008)
Episode 8x03: Toxic (Oct 2, 2008)
Episode 8x04: Instinct (Oct 9, 2008)
Episode 8x05: Committed (Oct 16, 2008)
Episode 8x07: Identity (Oct 30, 2008)
Episode 8x08: Bloodline (Nov 6, 2008)
Episode 8x10: Bride (Nov 20, 2008)
Episode 8x15: Infamous (Mar 12, 2009)
Episode 8x17: Hex (Mar 26, 2009)
Episode 8x19: Stiletto (Apr 23, 2009)
Episode 8x22: Doomsday (May 14, 2009)
Episode 9x01: Savior (Sep 25, 2009)
Episode 9x02: Metallo (Oct 2, 2009)
Episode 9x03: Rabid (Oct 9, 2009)
Episode 9x04: Echo (Oct 16, 2009)
Episode 9x05: Roulette (Oct 23, 2009)
Episode 9x06: Crossfire (Oct 30, 2009)
Episode 9x08: Idol (Nov 13, 2009)
Episode 9x09: Pandora (Nov 20, 2009)
Episode 9x10: Disciple (Jan 29, 2010)
Episode 9x11: Absolute Justice (Feb 5, 2010)
Episode 9x12: Warrior (Feb 12, 2010)
Episode 9x13: Persuasion (Feb 19, 2010)
Episode 9x14: Conspiracy (Feb 26, 2010)
Episode 9x15: Escape (Apr 2, 2010)
Episode 9x17: Upgrade (Apr 16, 2010)
Episode 9x18: Charade (Apr 23, 2010)
Episode 9x20: Hostage (May 7, 2010)
Episode 9x21: Salvation (May 14, 2010)
Episode 10x01: Lazarus (Sep 24, 2010)
Episode 10x02: Shield (Oct 1, 2010)
Episode 10x03: Supergirl (Oct 8, 2010)
Episode 10x04: Homecoming (Oct 15, 2010)
Episode 10x05: Isis (Oct 22, 2010)
Episode 10x06: Harvest (Oct 29, 2010)
Episode 10x07: Ambush (Nov 5, 2010)
Episode 10x08: Abandoned (Nov 12, 2010)
Episode 10x09: Patriot (Nov 19, 2010)
Episode 10x10: Luthor (Dec 3, 2010)
Episode 10x11: Icarus (Dec 10, 2010)
Episode 10x12: Collateral (Feb 4, 2011)
Episode 10x13: Beacon (Feb 11, 2011)
Episode 10x14: Masquerade (Feb 18, 2011)
Episode 10x15: Fortune (Feb 25, 2011)
Episode 10x16: Scion (Mar 4, 2011)
Episode 10x17: Kent (Apr 15, 2011)
Episode 10x18: Booster (Apr 22, 2011)
Episode 10x19: Dominion (Apr 29, 2011)
Episode 10x20: Prophecy (May 6, 2011)
Episode 10x21: Finale (1) (May 13, 2011)
Episode 10x22: Finale (2) (May 13, 2011)

Guest cast, played by Erica Durance

Episode 4x01: Crusade (Sep 22, 2004)
Episode 4x02: Gone (Sep 29, 2004)
Episode 4x03: Facade (Oct 6, 2004)
Episode 4x04: Devoted (Oct 13, 2004)
Episode 4x08: Spell (Nov 10, 2004)
Episode 4x12: Pariah (Feb 2, 2005)
Episode 4x13: Recruit (Feb 9, 2005)
Episode 4x14: Krypto (Feb 16, 2005)
Episode 4x16: Lucy (Mar 2, 2005)
Episode 4x18: Spirit (Apr 20, 2005)
Episode 4x19: Blank (Apr 27, 2005)
Episode 4x21: Forever (May 11, 2005)
Episode 4x22: Commencement (May 18, 2005)