Actors Anthony Anderson (black-ish), Molly Ringwald (Sixteen Candles) and Vanessa Williams (The Good Wife) are among several celebrity guest stars appearing during the fourth season of Disney Junior’s animated series Doc McStuffins, the network said Tuesday (Feb. 9).

Ellen Pompeo (Grey's Anatomy) and Gabourey Sidibe (Empire) will also guest star on Doc McStuffins, in which the lead character will  serve as chief resident of her own Toy Hospital, according to the network. They join previously announced guest star Christopher "Ludacris" Bridges in season four, which is slated to debut this summer, according to network officials.