Smallville Season 5 Episode 21 Oracle ( Air Date 2006-05-04 ) Genre Sci-Fi & Fantasy, Action & Adventure, Drama category. Overview "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.".
Smallville Season 5 Episode 21 Oracle
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- Watch: Smallville Season 5 Episode 21 Oracle on CWR-CRB
- Stars: Tom Welling, Erica Durance, Cassidy Freeman, Justin Hartley
- Director: Tom Welling, Alfredo Septién, Tom Flores, Anne Cofell Saunders, Turi Meyer, Christopher Petry, Jae Marchant, Tim Scanlan, Cristina Verano, Brian Peterson, Kelly Souders, James Marshall, Michael Tollin, Joe Davola, Brian Robbins, Greg Beeman, Joe Shuster, Jerry Siegel
