TBA in Korean, Gary Anthony Williams in English) is Hank's whale dad. Jozi (voiced by TBA in Korean, Carly Hughes in English) is Hank's whale stepmom. Ashley (voiced by TBA in Korean, Cristina Milizia in English) is Hank's younger whale stepsister. Splashley (voiced by TBA in Korean, Shelby Young in English) is Hank's other younger whale stepsister. Shadow (voiced by Lee Sang Ho in Korean, Cristina Pucelli in English) is a grey male shark and Baby's archrival. Bait and Switch (voiced by Rama Vallury and Tara Strong respectively) are Shadow's sidekicks. Bait is a purple tang and Switch is a brown angelfish. Mariana (voiced by TBA in Korean, Carolina Ravassa in English) is Shadow's mom. Sledge (voiced by TBA in Korean, Anthony Del Rio in English) is Shadow's hammerhead shark cousin. Rayna Ray (voiced by Yoon Eun-seo in Korean, Shelby Young in English) is a purple female manta ray who's a news reporter, and William's mother. Marty Minnow (voiced by TBA in Korean, Griffin Puatu in English) is a green bespectacled male minnow and the leader of the minnows. Vigo (voiced by TBA in Korean, Andrew Morgado in English) is a villainous squid who is always trying to take over Carnivore Cove. Costello (voiced by TBA in Korean, Alexander Polinsky in English) is a fish who is Vigo's assistant and henchman. Mayor Anchovy (voiced by TBA in Korean, John Michael Higgins in English) Big Fin (voiced by TBA in Korean, Nolan North in English) is a legendary fishy who lives in the Kelp Woods. Teensy Tardigrade (voiced by Cristina Milizia) is Baby Shark's pet tardigrade. Party Puddle Dolphin (voiced by Tara Strong) Mail Whale (voiced by Fred Tatasciore) is a delivery whale. Ernie Urchin (voiced by Kalo Moss in Season 1, Bodhi Friedman in Season 2) is a one-eyed urchin. Wallace (voiced by TBA in Korean, Michaela Dietz in English) Penny Piranha (voiced by Aria Surrec) is a pink piranha who also turns red when angry. Briny (voiced by TBA in Korean, Vasthy Mompoint in English) is a shopkeeping whale. Bentley Barracuda (voiced by TBA in Korean, Jim Rash in English) is a snooty barracuda. Production On June 5, 2019, it was announced that the series was in development at Nickelodeon. On June 25, 2020, it was announced that Nickelodeon officially green-lit the series, with a 26-episode order. On November 12, 2020, it was announced that the series would premiere