Mitchell Kosterman

Mitchell Arthur Edgar Kosterman is a Canadian actor. He was born in Vancouver, British Columbia, Canada. He is probably best known for his role as Sheriff Ethan Miller in Smallville.

SMALLVILLES1, E4

X-Ray

Clark reels from his first flashes of X-ray vision. His shock is compounded when he witnesses a bank robbery, apparently by his friend, Lex. Unsure of how to control this new power, Clark nonetheless puts it to use when a Smallville teen who has developed shape-shifting abilities threatens Lana.
SMALLVILLES1, E6

Hourglass

Clark is wracked with haunting visions when he meets an old woman, Cassandra Carpenter (Jackie Burroughs), who can see the future. Lex schemes to use Cassandra's gift to glimpse his own destiny and learn more about Clark's secret. Meanwhile, a bitter old man, Harry Bollston (George Murdock), discovers a "fountain of youth" and reverts to a teenager. He then seeks revenge on the descendants of jurors who put him in jail decades ago.
SMALLVILLES1, E9

Rogue

The secret is out - perhaps. Clark performs a lifesaving act of super heroism, thinking there are no witnesses. But a nearby cop sees everything, and he has blackmail in mind.
SMALLVILLES1, E8

Jitters

Clark and Lex team up to rescue members of Clark's high school class after a janitor, Earl Jenkins (Tony Todd), takes them hostage in LuthorCorp's Smallville Fertilizer Plant No. 3. Jenkins claims his deadly "jitters" were caused by a mysterious contaminant, and he threatens to kill everyone unless he is shown a secret sublevel -- which Lionel Luthor (recurring guest star John Glover) denies ever existed.
SMALLVILLES1, E14

Zero

Lex faces the consequences of a scandal from his past in Metropolis when an old enemy comes to Smallville intent on destroying Lex's life, putting Clark and Lana in danger. While protecting Lex, Clark must also prevent Chloe from investigating the mystery of Clark's adoption.
SMALLVILLES1, E12

Leech

When Clark rescues his classmate, Eric Summers (Shawn Ashmore), from harm during an electrical storm, they are both struck by lightning -- resulting in all of Clark's superpowers being transferred to Eric. While Eric relishes his new life as "Superboy," he soon begins to abuse his new powers. Clark's happiness at finally being a "normal" teenager is tempered by his growing concern for the town's safety. Meanwhile, Lex confronts Clark, believing that he has undeniable proof of Clark's superpowers.