found: Spring parade [MP] 1940:credits (the players, S.Z. Sakall)
found: His The story of Cuddles, 1954
found: Halliwell's Filmgoer's comp., 1988(Sakall, S.Z.; AKA Eugene Gero Szakall; nicknamed "Cuddles"; b. 1884 d. 1955; Hungarian character actor with vaudeville and stage experience)
found: Casablanca, c1992:credits (S.K. Sakall)
found: Internet movie database, Sept. 5, 2000(S.Z. Sakall; birthname: Eugene Gero Sakall; b. Feb. 2, 1884 in Budapest, d. Feb. 12, 1955 in Los Angeles; sometimes credited as S.K. Sakall, S.Z. "Cuddles" Sakall, Szöke Sakall)
found: Prominententeich, c1934:t.p. (Szöke Szakall)
found: Hungarian National Library database, viewed 15 September 2015(access point: Szőke, Szakáll, 1884-1955)
found: Hungarian Wikipedia website, viewed 15 September 2015(page for "Gerő Jenő": born as Sándor Gärtner. Jenő Gerő was one of his pseudonyms, along with Szőke Szakáll, S.K. Sakall and its variations)