This is the full first name of Morty Smith, one of the main protagonists from the cartoon Rick and Morty (2013).
― Anonymous User 9/24/2017
4
Roger Mortimer helped depose Edward II of England with the King's wife Isabella of France, his lover. He was executed when Edward III deposed him and his mother.
Disney's Mickey Mouse was originally named Mortimer.
― Anonymous User 6/14/2006
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This is the name of Cary Grant's character in the 1944 movie "Arsenic and Old Lace." I used to think Mortimer was a dweeby name, but it's quite charming on Cary Grant!