TV Smallville - Season 1 Episode 12 : Leech Smallville - Season 1 Episode 12 : Leech 8.187/10 by 4334 users Clark's powers are transferred into a classmate during a freak juxtaposition of meteor and storm. Clark must deal with being normal for the first time, and his classmate Eric is unable to cope with the new powers. Can Clark stop Eric's rampage without his abilities? Details Casts Posters Images Title Smallville - Season 1 Episode 12 : Leech Alternative Titles First Air Date 2001-10-16 Last Air Date 2011-05-13 Number of Episodes 216 Number of Seasons 10 Genres Sci-Fi & Fantasy, Action & Adventure, Drama, Networks The WB, The CW, Casts Tom Welling, Erica Durance, Cassidy Freeman, Justin Hartley Plot Keywords , Clark Kent Tom Welling Lois Lane Erica Durance Tess Mercer Cassidy Freeman Oliver Queen Justin Hartley Episodes List Smallville Season 1 :Episode 1 Pilot Pilot 2001-10-16 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 2 Metamorphosis Metamorphosis 2001-10-23 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 3 Hothead Hothead 2001-10-30 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 4 X-Ray X-Ray 2001-11-06 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 5 Cool Cool 2001-11-13 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 6 Hourglass Hourglass 2001-11-20 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 7 Craving Craving 2001-11-27 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 8 Jitters Jitters 2001-12-11 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 9 Rogue Rogue 2002-01-15 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 10 Shimmer Shimmer 2002-01-29 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 11 Hug Hug 2002-02-05 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 12 Leech Leech 2002-02-12 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 13 Kinetic Kinetic 2002-02-26 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 14 Zero Zero 2002-03-12 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 15 Nicodemus Nicodemus 2002-03-19 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 16 Stray Stray 2002-04-16 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 17 Reaper Reaper 2002-04-23 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 18 Drone Drone 2002-04-30 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 19 Crush Crush 2002-05-07 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 20 Obscura Obscura 2002-05-14 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark... Smallville Season 1 :Episode 21 Tempest Tempest 2002-05-21 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark...