The puppy that the Captain gives Mack. As Darling grows older, everyone at the Palace Flophouse falls in love with her, doting on her and letting her do whatever she wants. When Eddie tries to bake a cake for Doc’s surprise birthday party, Darling finds it, eats it, and subsequently throws up in its center. Later, Darling becomes dangerously ill, and it isn’t until Doc visits the Palace Flophouse and gives Mack and “the boys” instructions about how to care for her that she gets better. Perhaps most importantly, this is the first meaningful interaction that the gang has with Doc after the disastrous first party, thereby reestablishing their connection to the kindhearted marine biologist.