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Stan Marsh
Eyes: Black
Hair: Black
Race: Human
Occupation: Grade schooler
Legal status: U.S. citizen
Marital Status: Single
Known relatives: Randy Marsh (father)
Sharon Marsh (mother)
Shelly Marsh (sister)
Grandpa Marsh (grandfather)
Jimbo (uncle)
Base of operations: South Park, USAShelly Marsh (sister)
Grandpa Marsh (grandfather)
Jimbo (uncle)
Continuity: South Park
Company: Comedy Central
First app.: The Spirit of Christmas (Jesus vs. Frosty) (1992)
Creator(s): Trey Parker
Matt Stone
Country of origin: USA 
Background notes: A reader has claimed that in the episode Free Willzyx (#138) it is said that Stan actually has blue eyes. I haven't seen the episode yet and cannot confirm this.