Guest Stars Ben Schwartz as Jean-Ralphio Saperstein Helen Slayton-Hughes as Ethel Beavers Susan Yeagley as Jessica Wicks Jenny Slate as Mona-Lisa Saperstein Marc Evan Jackson as Trevor Nelsson Henry Winkler as Dr. Saperstein Sara Van Horn as Gretel Heidi Klum as Ulee Danssen Kaliko Kauahi as Khongordzol Sope Aluko as Lisa