Plot: Clark hears his mother's voice trapped in Kara's crystal, and releases her. She gives him Jor-El's ring made of Blue Kryptonite, which strips him of his powers
Cast
Tom WellingClark KentTom Welling was 30 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Tue, Apr 26 1977
Kristin KreukLana LangKristin Kreuk was 24 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Thu, Dec 30 1982
Erica DuranceLois LaneErica Durance was 29 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Wed, Jun 21 1978
Michael RosenbaumLex LuthorMichael Rosenbaum was 35 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Tue, Jul 11 1972
Allison MackChloe SullivanAllison Mack was 25 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Thu, Jul 29 1982
John GloverLionel LuthorJohn Glover was 63 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Mon, Aug 07 1944
Laura VandervoortKara KentLaura Vandervoort was 23 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Sat, Sep 22 1984
Aaron AshmoreJimmy OlsenAaron Ashmore was 28 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Sun, Oct 07 1979
Michael CassidyGrant GabrielMichael Cassidy was 24 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Sun, Mar 20 1983
Christopher HeyerdahlZor-ElChristopher Heyerdahl was 44 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Wed, Sep 18 1963
Helen SlaterLara-ElHelen Slater was 43 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Sun, Dec 15 1963
Jason PoulsenColinJason Poulsen was >> in Smallville - Season 7 - Blue (Episode 8).
Birthday: Unknown Birthday
Terence StampJor-El (voice)Terence Stamp was 69 in Smallville - Season 7 - Blue (Episode 8).
Birthday: Fri, Jul 22 1938
Angela MooreDetroit WaitressAngela Moore was >> in Smallville - Season 7 - Blue (Episode 8).
Birthday: Unknown Birthday
Mike EnnisEMTMike Ennis was >> in Smallville - Season 7 - Blue (Episode 8).
Birthday: Unknown Birthday
Patricia CullenMeteorologistPatricia Cullen was >> in Smallville - Season 7 - Blue (Episode 8).
Birthday: Unknown Birthday
Crew
Glen WinterDirectorGlen Winter was >> in Smallville - Season 7 - Blue (Episode 8).
Birthday: Unknown Birthday
Todd SlavkinWriterTodd Slavkin was >> in Smallville - Season 7 - Blue (Episode 8).
Birthday: Unknown Birthday
Darren SwimmerWriterDarren Swimmer was >> in Smallville - Season 7 - Blue (Episode 8).
Birthday: Unknown Birthday