The McViper Clan is a group of fictional characters created by Carl Barks for The Walt Disney Company. They first appeared in Uncle Scrooge #56 in The Mystery of the Ghosttown Railroad. In that story they try to scare Scrooge McDuck and his nephews with false ghosts. Actually only of them appeared in that story and his name was Copperhead McViper. Copperhead later appeared in The Cattle King in Uncle Scrooge #69 where he tried to antagonize Scrooge and his nephews again. Don Rosa used The McViper Clan in The Life and Times of Scrooge Part 3 where two of them who go by the names Snake Eyes and Haggis infiltrate Murdo Mackenzie and his posse while they plan to rustle Murdo's prize bull Vindicator but Scrooge outwits them. This is supposedly the first encounter that Scrooge has had with The McViper Clan. Either Snake Eyes or Haggis is the father of Copperhead but it is unknown which one. In Part 11 Copperhead and two of his brothers try to steal some papers from Scrooge but they don't succeed.
