The actors lending their voices to The Secret Life of Pets (2016) aren't exactly a secret. In fact, most of them are pretty identifiable by voice, including Louis C.K. as Jack Russell terrier Max, Kevin Hart as white rabbit Snowball, Jenny Slate as white Pomeranian Gidget, and Eric Stonestreet as sloppy stray dog Duke. The star-studded animated comedy centers on Max's peaceful existence as a domesticated pet being upended by the arrival of Duke as they subsequently become lost on the streets of New York City.

Read on to find out the voices behind the menagerie of critters (and a human!) in The Secret Life of Pets.

Louis C.K.: Max

Louis C.K. starred as Max in The Secret Life of Pets, a Jack Russell Terrier. The Louie actor has also lent his voice to Dr. Katz, Professional Therapist and Home Movies.

Eric Stonestreet: Duke

Eric Stonestreet voiced the Newfoundland Duke for The Secret Life of Pets, a large dog who disrupts Max's life. The Modern Family actor also has other voice credits for American Dad! and Sofia the First.