Jim Breheny (Himself - Director, Bronx Zoo), Sara Gonzalez (Herself - Senior Keeper, Mammalogy), Jean Parè (Himself - Veterinarian), Jessica Moody (Herself - Assistant Curator, Mammalogy), Susan Schmid (Herself - Assistant Supervisor, Ornithology), Annie Rivas (Herself - Clinical Resident), Anthony Fischetti (Himself - Head of Radiology, Animal Medical Center), Sabrina Squillari (Herself - Senior Keeper, Mammalogy), David Oehler (Himself - Curator, Ornithology), Charlotte Hollinger (Herself - Associate Pathologist, Pathology)