See some of Hollywood's biggest stars before they became household names. How many do you recognize?

Before They Were Famous: Actors' Early Roles

See some of Hollywood&#39;s biggest stars before they became household names. How many do you recognize?

From popular franchises to brand new worlds of exploration, science fiction and fantasy stories are more popular than ever. Check out our list of the best and brightest new and upcoming movies and series.

New and Upcoming Sci-Fi and Fantasy

John Glover and Cassidy Freeman in Smallville (2001)

John Glover and Annette O'Toole in Smallville (2001)

John Glover and Blair Brown in Smallville (2001)

John Glover and Michael Rosenbaum in Smallville (2001)

John Glover and Joe Morton in Smallville (2001)

A young Clark Kent struggles to find his place in the world as he learns to harness his alien powers for good and deals with the typical troubles of teenage life in Smallville, Kansas.

John Glover: Lionel Luthor • Clark Kent • Darkseid • ...

Smallville

John Glover credited as playing...

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