TV Smallville - Season 5 Episode 21 : Oracle Smallville - Season 5 Episode 21 : Oracle 8.2/10 by 4335 users Clark and Martha are both visited by Jonathan's ghost, who warns them about Lionel and claims that Clark must kill him to stop him. Meanwhile Fine will do whatever it takes to get the vaccine from Lex. Details Casts Posters Images Title Smallville - Season 5 Episode 21 : Oracle 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 5 :Episode 1 Arrival Arrival 2005-09-29 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 5 :Episode 2 Mortal Mortal 2005-10-06 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 5 :Episode 3 Hidden Hidden 2005-10-13 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 5 :Episode 4 Aqua Aqua 2005-10-20 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 5 :Episode 5 Thirst Thirst 2005-10-27 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 5 :Episode 6 Exposed Exposed 2005-11-03 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 5 :Episode 7 Splinter Splinter 2005-11-10 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 5 :Episode 8 Solitude Solitude 2005-11-17 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 5 :Episode 9 Lexmas Lexmas 2005-12-08 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 5 :Episode 10 Fanatic Fanatic 2006-01-12 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 5 :Episode 11 Lockdown Lockdown 2006-01-19 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 5 :Episode 12 Reckoning Reckoning 2006-01-26 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 5 :Episode 13 Vengeance Vengeance 2006-02-02 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 5 :Episode 14 Tomb Tomb 2006-02-09 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 5 :Episode 15 Cyborg Cyborg 2006-02-16 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 5 :Episode 16 Hypnotic Hypnotic 2006-03-30 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 5 :Episode 17 Void Void 2006-04-06 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 5 :Episode 18 Fragile Fragile 2006-04-13 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 5 :Episode 19 Mercy Mercy 2006-04-20 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 5 :Episode 20 Fade Fade 2006-04-27 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 5 :Episode 21 Oracle Oracle 2006-05-04 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 5 :Episode 22 Vessel Vessel 2006-05-11 The origins of the world’s greatest hero–from Krypton refugee Kal-el’s arrival on Earth through his tumultuous teen years to Clark...