Cavenpuss a platypus/Balthazar Cavendish hybrid on Milo Murphy’s Law.


This being has Balthazar Cavendish's head, glasses, hat, and tie. He also has Perry the Platypus' torso, limbs, and tail.


In "Escape", when Dakota get's the idea to have his new friend Doofenshmirtz to create a clone of Cavendish so they can use it to locate Cavendish as Dakota is unknown where Cavendish is.

Doof agrees and uses a sample of Cavendish's DNA to create the clone. However, Doof get's lazy and speeds up the cloning process by using some left over platypus DNA he had laying around, thus creating him.

Dakota is disgusted by him and calls him an abomination. Getting desperate, Dakota later interrogate him to get any possible information on Cavendish from him. When questioned about the location of Cavendish, he responds that he does not have Cavendish's memories or personality and that he is his own being.

He later relaxes with Dakota, Doof, Milo, Melissa, and Zack. But when Milo reveals that he is aware of Cavendish's current state, frozen in a ice block in an Octalian ship, Milo brings all of them to the Octalian ship.

Dakota runs into the ship and releases Cavendish from the block of ice, reuniting the two friends. Cavendish tells all of them that the Octalians are coming to abduct Milo. Because of the reveal, he lays and egg.

In "Milo in Space", after Milo get's abducted by the Octalian's Melissa put's together a plan to get their Octalian ship to space so they can rescue Milo. Cavenpuss is put in charge of launching the ship after everyone else has been made boneless. Cavenpuss later is around when they discover what appears to be Milo's body still alive in cold space after Milo's ship was destroyed.

In "Sphere and Loathing in Outer Space", the found Milo's body is let on board only to revealed that it is Loab shapshifting into a Milo form. He reveals that Milo is in a escape pod with the rest of the Octalians. Loab also screams at him and he walks away with a cup of tea.

When the rest of the gang (Melissa, Zack, Cavendish, Dakota, Doof, Perry, and Loab) go off to save Milo after landing on the plant Octalia, Cavenpuss takes a "well deserved" bath and contemplates his existence.

After the gang helps Milo gives a speech to the Octalians, he walks out of the ship and scares off all of the Octalians. Cavenpuss is angered by this and Doof sarcastically mentions that he should join a support group.


  • It is unknown if this character is male or female, for s(he) has a man’s head and voice but can also lay eggs. It is referred to as male throughout the series.
  • UnusedAnimationTwitter
    He has been called an abomination by many other characters, mainly by Doof.
  • Dan Povenmire has said that the egg he laid in "Escape" was supposed to hatch in "Milo in Space" to reveal Baby Cavenpuss. This character was scrapped for unknown reasons.


v - e - d
Milo Murphy's Law Logo
Milo Murphy's Law
Milo MurphyZack UnderwoodMelissa ChaseDiogeeBradley NicholsonDoctor ZoneTime ApeSara MurphyMartin and Brigette MurphyAmanda LopezBalthazar CavendishVinnie DakotaHeinz DoofenshmirtzPerry the PlatypusElliot DeckerMrs. MurawskiKing PistashionMajor Francis MonogramCarl KarlVictor VerliezerRecurring RaccoonDerekJackieNormLove HändelVanessa Doofenshmirtz

Guest Characters: Phineas FlynnFerb FletcherCandace FlynnBaljeet TjinderBuford Van StommIsabella Garcia-ShapiroLinda Flynn-FletcherLawrence FletcherIrving Du BoisGiant Floating Baby Head

Season One: "Going the Extra Milo/Sunny Side Up" • "Rooting for the Enemy/The Undergrounders" • "The Doctor Zone Files/The Note" • "Party of Peril/Smooth Opera-tor" • "Worked Day/The Wilder West" • "Family Vacation/Murphy's Lard" • "Secrets and Pies/Athledecamathalon" • "The Substitute/Time Out" • "We're Going to the Zoo/School Dance" • "Battle of the Bands/The Math Book" • "The Little Engine That Couldn't/The Llama Incident" • "Missing Milo" • "Star Struck/Disaster of My Dreams" • "A Clockwork Origin/Perchance to Sleepwalk" • "Some Like it Yacht/Backward to School Night" • "World Without Milo/The Race" • "Love Toboggan/The Island of Lost Dakotas" • "Fungus Among Us" • "Milo Murphy's Halloween Scream-A-Torium" • "A Christmas Peril"
Season Two: "The Phineas and Ferb Effect" • "Snow Way Out/Teacher Feature" • "Picture Day/Agee lentee Diogee" • "Game Night/Pace Makes Waste" • "Cake 'Splosion!/Lady Krillers" • "Doof's Day Out/Disco Do-Over" • "The Ticking Clock/Managing Murphy's Law" • "Milo's Shadow/Sick Day" • "Field of Screams/Spy Little Sister!" • "Freefall/Milo's World" • "Dog Walker, Runner, Screamer/Now I Am a Murphy" • "Abducting Murphy's Law" • "The Goulash Legacy/The Dog Who Knew Too Much" • "Adventure Buddies/Ride Along Little Doggie!" • "Look at this Ship/Cast Party" • "Safety First/Cavendish" • "First Impressions/The Speech and Debate League of Death and Destruction Cross Town Explosion Event" • "The Mid-Afternoon Snack Club/Parks and Wreck" • "Escape/Milo in Space" • "Sphere and Loathing in Outer Space"
It's My World (And We're All Living in It)Don't Break MeRooting for the EnemyThe Doctor Zone Files Theme SongI've Got No ExcusesMister GoThe Show Must Go OnMurphy Family VacationLard WorldChop Away at My HeartWe're Going to the ZooI Need A Little TLCJust Roll With ItA Bumpy Ride TonightLlama LlamaI Can't Find YouSafety CzarI'm Taking A StrollWorld Without MiloToboggan of LoveI'm All Tied Up
DanvilleJefferson County Middle SchoolLard WorldMr. Slushy Franchise
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