The serial and the sartorial: permutations of a motif in new portraits by Alex Katz Published for the artist's 2021 show at Gray Chicago, Alex Katz: The White Coat debuts the latest series from Alex Katz (born 1927), titled Vivien in White Coat: 11 large-scale portraits depicting Vivien Bittencourt, the painter's daughter-in-law, wearing a radiant white coat.