Who Is In The Cast Of Secret Lives Of Pets?

Let’s geek out about the voice actors in 'The Secret Life of Pets'! Max’s journey from spoiled only pet to reluctant big brother is voiced first by Louis C.K., then Patton Oswalt—both capture his nervous charm, but Oswalt’s take in the sequel feels more vulnerable. Eric Stonestreet’s Duke is all gruff warmth, while Jenny Slate’s Gidget is a riot, especially when she’s impersonating a cat to infiltrate an apartment. Kevin Hart’s Snowball is the standout, though; his manic energy makes a tiny bunny threatening and adorable at once. The supporting cast slays too: Albert Brooks’ deadpan Tiberius and Lake Bell’s Chloe are perfection. And Harrison Ford joining as Rooster in the sequel? Genius. His voice alone makes a cartoon dog feel like a grizzled action hero.

The voice cast of 'The Secret Life of Pets' is packed with talent that brings those adorable, mischievous pets to life! Louis C.K. originally voiced Max, the lovable Jack Russell Terrier, though later projects recast the role due to personal controversies. Eric Stonestreet nails it as Duke, the giant, shaggy Newfoundland who starts as Max’s rival but becomes his brother in chaos. Jenny Slate’s Gidget, the fiery Pomeranian with a crush on Max, steals every scene with her hilarious mix of sweetness and aggression. And who could forget Kevin Hart’s Snowball, the unhinged yet charismatic bunny leading the Flushed Pets rebellion? The supporting cast is just as stellar—Ellie Kemper as Katie (Max’s owner), Albert Brooks as the wise but lazy hawk Tiberius, and Lake Bell as the sassy cat Chloe, who’s weirdly obsessed with food. Even Dana Carvey pops in as Pops, the elderly basset hound with a wild streak. The chemistry between these actors makes the film’s humor and heart shine.

What’s cool is how the cast balances big-name comedians with character actors, creating a vibe that’s both star-studded and oddly authentic. The sequel, 'The Secret Life of Pets 2', adds even more talent—Patton Oswalt replaces Louis C.K. as Max, and Tiffany Haddadish joins as Daisy, a fearless Shih Tzu. Harrison Ford’s gruff voice suits Rooster, a farm dog who mentors Max, perfectly. The films wouldn’t be half as fun without these voices—each actor leans into their character’s quirks, whether it’s Hart’s manic energy or Slate’s hilarious romantic desperation. It’s a masterclass in animated voice acting, where every line feels lived-in and spontaneous.