|This article is written from the Real World perspective|
William Sanderson (born January 10, 1948 in Memphis, Tennessee) is an American actor, best known as J.F. Sebastian in Blade Runner, and as Larry (with 2 brothers named Darryl) on the 1980s television series Newhart.
- "Heart of Steel" - Karl Rossum
- "Heart of Steel, Part II" - Karl Rossum (duplicant)
- "His Silicon Soul" - Karl Rossum
- "Deep Freeze" - Karl Rossum
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