Created by Stewart Sterling Pseudonym of Prentice Winchell Other pseudonyms include Spencer Dean, Jay de Bekker, Giles Norcroft, Robert Wallace (1895-1976) DON MARKO was an apparent predecessor of the author's series character Don Cadee, whom he wrote about under the pen name of Spencer Dean. MNarko appeared in five  short stories near the end of … Continue reading Don Marko →