T.O.T.S.

• Pip the Penguin (voiced by Jet Jurgensmeyer[2]) – A young delivery bird who serves as Freddy's navigator and is the main protagonist of the series, along with Freddy. First mentioned in episode "Back to Cool", his birthplace is Iceberg Alley, home of Penn and his parents, and other penguins.
• Freddy the Flamingo (voiced by Christian J. Simon[2]) – A young delivery bird who is Pip's partner, and the one who does the flying. He's also the main protagonist, along with Pip. He has long wings that help him fly.
• Captain Beakman (voiced by Vanessa Williams[2]) – The leader of T.O.T.S. and the mother of Mia the kitten.
• K.C the Koala (voiced by Megan Hilty[2]) – A 16-year-old worker at T.O.T.S. who tends the infants before they get delivered. She runs the nursery. She is also a guitarist.

• Bodhi (voiced by Parvesh Cheena) – An insecure stork deliverer with the biggest wings at T.O.T.S. He tends to get spooked by mostly ordinary things, but is willing to help when assistance is needed.
• Ava (voiced by Melanie Minichino) – A street-talking female stork deliverer at T.O.T.S. Her catchphrase is "Rock On!".
• J.P. (voiced by Henri Lubatti) – A narcistic and proud stork deliverer at T.O.T.S. who speaks in a French accent. He is one of the finest deliverers at T.O.T.S. as he won "Delivery Bird of the Month" ten consecutive times, thus Pip and Freddy see him as a role model. He was also the company's fastest deliverer until he was succeeded by Ava who in turn was succeeded by Bodhi.
• Paulie (voiced by Dee Bradley Baker) – A parrot who is the air traffic controller at T.O.T.S. and often speaks his sentences twice.
• Mr. Woodbird (voiced by Eric Bauza) – A woodpecker who is the janitor at T.O.T.S. who sometimes gives Pip and Freddy ideas that are solutions to their problems.
• Mia (voiced by Charlie Townsend) – A baby kitten, who is the adopted daughter of Captain Beakman. Her catchphrase is "Mia help! Mia help!" when someone wants help with something, but even she needs help. In the episode "Lend Me Your Paw", she looks up to Pip and Freddy. She is the only baby whose name does not start with the same letter as her animal type.
• Peggy (voiced by Angelica Hale) - A polar bear who wanted a better baby brother than Paul until she heard he got stuck in a small cave in the episode "Bringing Back Baby".

Some of the babies are toddler animals who have each skill and ability in each episode. They are delivered by both Pip and Freddy on their deliveries. Some are background characters.

• Kiki (voiced by Amari McCoy) – A baby kitten who used to think that Pip and Freddy were her parents until she met her real ones.
• Wyatt (voiced by Remy Edgerly) – A baby whale who was really big and took a lot of flyers to deliver.
• Precious (voiced by Amari McCoy) – A baby panda that was so cute and dangerously adorable, that she was impossible to say goodbye to. The only way to get out of her spell is to get reminded that she has a family of her own.
• Scooter (voiced by Boone Nelson) – A baby skunk that likes to play ball, but no one wanted to play with him due to his skunk stink unless someone wore a helmet to prevent them from smelling his stench.
• Chase (voiced by Nick A. Fisher) – A baby cheetah. He is impossible to catch, but can only be caught when he's asleep.
• Ducklings (voiced by Dee Bradley Baker) – Baby ducks that communicate with cute quacking noises.
• Tara (voiced by Abby Ryder Fortson) – A baby tapir. Pip and Freddy didn't know that she was a tapir at first due to the fact that they thought her parents weren't part of her species because she has stripes and her parents don't.
• Marty (voiced by Nick A. Fisher) – A baby monkey who lived at the nursery and loves to pretend to be a junior Flyer until in the episode "Monkeying Around and Around", when Pip and Freddy delivered him to his forever family.
• Blinky (voiced by Nick A. Fisher) – A light purple bunny who blinks a lot.
• Bouncy (voiced by Hadley Gannaway) – A dark purple bunny who bounces a lot.
• Blondy (voiced by Nick A. Fisher) – A yellow bunny who is named that because of her blondish fur.
• Burpy (voiced by Dee Bradley Baker) – A gray bunny who has a bad habit of burping.
• Bushy (voiced by Nick A. Fisher) – A blue bunny with a white bushy afro.
• Bobtail (voiced by Hadley Gannaway) – An orange bunny that shakes her tail a lot.
• Octavia (voiced by Charlie Townsend) – A baby octopus with a big heart who was delivered in a special crate filled of water.
• Diane (voiced by Charlie Townsend) – A baby donkey who likes eating grass.
• Cam (voiced by Hudson Cordero) – A baby chameleon who has the ability to change colors and patterns and mimic other animals, which made him extremely hard to find.
• Pablo (voiced by Max Mitchell) – A baby puppy who can bury anything, which is sort of a problem for Pip and Freddy since he buried their FlyPad in the episode "Diggity Dog".
• Sunny (voiced by Hadley Gannaway) – A baby sloth who does everything, even speaks slowly.
• Benny (voiced by Ayden Soria) – A baby bat who lives inside a cave that looks like a monster, is afraid of the light, and can navigate through the dark due to the fact that he's nocturnal.
• Didi (voiced by Elsa George) – A baby deer who managed to walk in just a day and is not afraid of bumpy flights.
• Penn (voiced by Ryan Soria) – A baby penguin who lives in Pip's hometown of Iceburg Alley and acts like a little brother to Pip.
• Linus (voiced by Hudson Cordero) – A baby lion who needed to learn how to be quiet, since his roar was very loud, scaring everyone and shaking everything.
• Pearl (voiced by Hadley Gannaway) – A baby pig who is hard to please when it comes to presents, but loves mud like any other pig. She also has the intelligence to call her parents Mommy and Daddy instead of Mama and Dada.
• Tiberius (voiced by Julian Edwards) – A baby white tiger prince who doesn't mind getting dirty.
• Kiera (voiced by Hadley Gannaway) – A baby kangaroo who bounces a lot and can cause bumpy flights, unless someone was in the crate with her to keep her entertained or if she was asleep.
• Petey (voiced by Boone Nelson) – A baby porcupine who was scared of the tube system until Pip and Freddy used his love of Choo-Choo trains to help him be brave.
• Betty and Bobby (voiced by Elsa George and Max Mitchell respectively) – Baby bear siblings that were delivered in a race between Pip and Freddy, and Professor Peacock's Storkbot. Betty has a pink blanket and her twin brother Bobby, has a blue pacifier, which ultimately became Peacock's downfall, as Storkbot cared more about the race, rather than keeping the babies happy.
• Kenny and Penny (voiced by Boone Nelson and Amari McCoy respectively) – A baby kitten and puppy who happen to be siblings who used to fight with each other, until they learned to share their stuff.
• Gil (voiced by Nick A. Fisher) – A baby guinea pig that means no harm, even though Bodhi is scared of him. But just like Bodhi, he is afraid of something. Which he is scared of flying which means the height.
• Paul (voiced by Boone Nelson) – A baby polar bear who is Peggy's brother.
• Camille (voiced by Charlie Townsend) – A baby camel who has a big thirst for water as she drank up a water cooler and a watering hole in the episode "A Penguin in the Desert".
• Finny – A baby fox who gave Pip, Freddy especially, a lot of trouble since he was an expert at hiding. He revealed himself when he stopped to grab a bite of Fox Flakes in the episode "Outfoxed".
• Sheera (voiced by Charlie Townsend) – A baby sheep who had a hard time seeing where she was going and caught a small cold when Pip and Freddy tried to help her, only to accidentally shave off all of her wool.
• Henry (voiced by Boone Nelson) – A baby hippo who is a picky eater that only wanted Hippo O's until he tried a bite of KC's treetop muffins in "Koala Kuisine".
• Renny (voiced by Hadley Gannaway) – A magical baby reindeer.
• Mimi (voiced by Hudson D’Arena) – A baby mockingbird who can mock others. Most notably, she can imitate songs such as KC's lullaby, when she put the entire facility to sleep, including Pip and Freddy.
• Chloe - A baby cow that happens to be Mia's best friend. She also has a monkey lovey named Señor Scuffins.
• Ellie – A baby elephant who enjoys playing, but tends to make messes wherever she goes.
• Flora (voiced by Charlie Townsend) - A baby frog who likes to smell flowers.
• Tallulah – A baby turtle who is very shy, but enjoys books, especially if the words happen to rhyme. She has faint black markings on her head resembling bobbed hair.
• Bernice (voiced by Amari McCoy) - A baby beaver who can chew and gnaw on anything she can get her paws on, rendering the objects to dust.
• Donny (voiced by Max Mitchell) - A baby dolphin. He is the third baby dolphin with the first two being Danny and Darla, but he's the first to actually be delivered. He also likes swimming through rings and is the first baby to have two mothers.
• Oki (voiced by Amari McCoy) - A baby otter who likes holding peoples hands, which caused problems for Pip and Freddy since she kept them up, and also disturbed the other babies in the nursery. In the end, they made her her own lovey so she'd stop getting out of her crib, with some help from Mr. Woodbird.
• Percy - A baby peacock who spends a majority of "The Ultimate Easter Egg Hunt", in an egg, which Freddy paints blue and puts a smile on, to avoid confusion with the eggs outside.
• Gus - A baby gorilla whom JP had to care for to become a Super-Duper Flier again in "Junior Flier JP"
• Ebenezer – A baby elephant who used his trunk to give other babies pacifiers in "Baby Breakdown".
• Selena – A baby seal who used her tail to give other babies rattles on the conveyor belt in "Baby Breakdown".
• Pam – A baby white pony with a pink mane.
• Horace - A baby horse who is the same color as Pam.
• Hedy – A baby hedgehog who was excited to meet her father Hank, but like Bodhi, was easily scared, and curled up whenever she felt afraid.
• Felix – A baby frog.
• Zelda – A baby zebra.
• Keli - A baby kitten whom Ava mixed-up with Flora in "The Fastest Flier".
• Timmy – A baby turtle seen wearing a blue crocheted hat.
• Penelope – A baby puppy who looks like Penny but with a Mint Green Diaper.
• Melvin – A baby monkey who constantly appears in episodes.
• Charlie – A baby cheetah who looks like Chase but with different markings.
• Chuck - A baby cheetah
• Misha – A baby monkey who looks like her best friend Marty but with hazel eyes.
• Patty – A baby puppy.
• Emmy – A baby elephant who looks like Ellie but with a blue bow in her hair.
• Genie – A baby giraffe who was a background baby at the nursery until episode “Lost Lovey”, when Mia's lovey accidentally got put in her crate when Ava was delivering her.
• Danny and Darla – Baby dolphins.

• Kiki's Parents – The Parents of Kiki. The mother looks like Kiki, while her husband has orange fur and wears glasses, but in the theme song, the daddy has blue fur and no glasses.
• Chase's Parents – The Parents of Chase.
• Scooter's Family – The Family of Scooter which consists of the parents and three skunk kids.
• Ducklings' Parents – The Parents of Ducklings.
• Bobtail's Parents – The Parents of Bobtail.
• Octavia's Parents – The Parents of Octavia. The Dad looks like Octavia, while the mom is orange.
• Sunny's Parents – The Parents of Sunny who talk slowly just like their daughter.
• Benny's Parents – The Parents of Benny. They are only seen in the picture on Pip's flight pad, but Benny's Mom's voice can be heard right after Pip rings the bell.
• Didi's Parents – The Parents of Didi.
• Tara's Parents – The Parents of Tara.
• Cam's Parents – The Parents of Cam.
• Penn's Parents (voiced by Jennifer Hale and Trevor Devall) – The Parents of Penn who do activities with Pip and Freddy in the episode their son gets delivered.
• Pablo's Parents – The Parents of Pablo.
• King Tiger and Queen Tiger – The Parents of Tiberius who are royalty, and rule over the Royal Rainy Rainforest.
• Pearl's Parents – The Parents of Pearl.
• Kenny and Penny's Dad – The Father of Kenny and Penny who happens to be a cow, despite Kenny and Penny being cats and dogs and is a single dad.
• Kiera's Parents – The Parents of Kiera.
• Petey's Mom – The Mother of Petey. Like Kenny and Penny's Dad, she is single.
• Linus’ Parents – The Parents of Linus.
• Gil's Parents – The Parents of Gil.
• Henry's Parents – The Parents of Henry.
• Marty's Parents – The Parents of Marty.
• Peggy and Paul's Parents – The Parents of Peggy and Paul.
• Camille's Parents – The Parents of Camille.
• Finny's Parents – The Parents of Finny.
• Renny's Parents - The Parents of Renny who work alongside Santa Claus.
• Sheera's Parents - The Parents of Sheera.
• Mimi's Parents – The Parents of Mimi.
• Diane's Parents – The Parents of Diane.
• Wyatt's Mom - The Mother of Wyatt. Despite her son debuting in “Whale, Hello There”, She does not get to appear alongside him until The Valentines Day Episode.
• Tallulah's Parents - The Parents of Tallulah.
• Flora's Parents - The Parents of Flora.
• Chloe's Parents - The Parents of Chloe.
• Donny's Parents (Mom voiced by Misty Lee) - The Parents of Donny.
• Oki's Moms - The Mothers of Oki.
• Hank (voiced by Jack McBrayer) - Hedy's Dad who is pretty new to parenting. He wanted things to be perfect for Hedy's arrival, and asked Freddy for help with determing various baby supplies, until he heard she got stuck on a hill.

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