The pseudonym derived from a distant relative of Gaarlandt's, the painter Otto B. de Kat.
Otto von Bismarck | Otto | Krazy Kat | Otto III | Otto Piene | Otto I, Holy Roman Emperor | Otto I | Otto Preminger | Otto II | Otto Dix | Otto Natzler | Otto II, Holy Roman Emperor | Otto Binder | Otto Skorzeny | Otto Schenk | Otto of Brunswick | Otto Kerner, Jr. | Otto Steinbrinck | Otto Kerner | Otto IV, Holy Roman Emperor | Otto IV | Otto III, Holy Roman Emperor | Otto Braun | Miranda Otto | Frei Otto | Phat Kat | Otto-Werner Mueller | Otto Schmidt | Otto Muehl | Otto Lilienthal |