Nanjiani voices the Mack, the very cautious patriarch of the Mallard family who is more than happy to never leave their safe New England pond. Albeit reluctantly, Mack eventually agrees to migrate with his family to go on one heck of a vacation together. The Big Sick actor told UPI he believes his character “slowly” became more anxious once he became a father. “He’s found a way to suppress his essential nature,” Nanjiani said. “As he had kids, I think he slowly became more and more neurotic.”

Banks voices Pam, the matriarch of the Mallard family who desperately wants more from life and is eager to show their kids what the rest of the world has to offer. In an interview with NBC Insider, Banks, a mom of two herself, said she relates to her character as a parent. “For me… I’m at that moment where I’m trying to push them out of the nest in a responsible way, where I want them to feel a greater sense of independence,” she told NBC Insider about her own family. “It’s frankly always a test of your parenting, you know. Have I taught them not to run into traffic? Have I done a good enough job where they can go be in the world and be safe on their own?”

DeVito supplies lots of laughs in Migration as Uncle Dan, who joins the rest of the Mallards on their journey south, even though he would have preferred to hang back at the pond. “Uncle Dan is a tough character, he’s kind of stuck in the mud,” the It's Always Sunny in Philadelphia actor said in a recent interview with reporter Leah Klett.

Awkwafina voices a character named Chump, the head of a New York City pigeon gang the Mallards meet on their journey. In an interview with LIVE with Kelly and Mark, the Crazy Rich Asians actress joked that she and Chump “look similar” and are alike in that they’re both from New York. “[Chump] is rough around the edges, but once we get to like you, you can trust us.”

Key puts on a heavy Jamaican as Delroy the scarlet macaw parrot in Migration. Delroy is locked up in a cage inside a Manhattan restaurant and tells the Mallards all about a terrifying dish called duck a l’orange. He’s homesick and wants to go home to Jamaica, and eventually breaks free to join the Mallards on their migration. The Wonka actor, who’s also lent his voice to The Super Mario Bros Movie as Toad, told The Movie Times “it was so much fun” to play with that dialect for the movie.

Kane voices Erin the heron, who thinks the Mallard kids are just so adorable, she could gobble them up like a little fish. No she won’t. Or will she? Erin ultimately becomes friends with Mallards, so our guess is she resisted. You’ll recognize Kane’s voice from her roles in Unbreakable Kimmy Schmidt, The Princess Bride, Taxi, Scrooged, and Addams Family Values.

Mitchell voices a bird named Googoo, a yogic leader of a duck farm. Googoo leads his fellow birds through breathing and stretching exercises. The British comedian and actor is as best known as part of the comedy duo Mitchell and Webb and creating and starring in the British sitcom Peep Show. Mitchell’s voice has appeared in an episode of Rick and Morty and even Peppa Pig as Police Officer Panda.

Caspar Jennings, who’s had voice roles in the Sing movies, and newcomer Tresi Gazal lend their voices to the youngest characters in Migration, the Mallard kids. Jennings plays Dax, their confident and fearless teenage son and Gazal voices Gwen, Dax’s younger sister who’s described “innocent and lovable” and, spoiler alert, she’s “too shy to poop in the sky” like other birds.