Kaisers entered the American market for the 1947 model year and were redsigned for 1951, both designs greatly influenced by custom car designer Howard A. "Dutch" Darrin (1897-1982), about whom here.
Head of Kaiser styling was Arnott "Buzz" Grisinger (1908-2002), obituary here, who worked at Chrysler during the 1930s and was at Ford during the last part of his career. The 1954 facelift was created under his direction, but seems to have been influenced by Edgar Kaiser, president of the company. I suspect that left alone, Grisinger might have come up with a different design. In any event, the result was striking. But the lack of a V-8 motor and public perception of Kaiser as moribund helped seal Kaiser's fate. The 1954 model was the last U.S. Kaiser, though the brand carried on for a while in South America.