Milo Murphy's Law Wiki

...I didn't study time travel for twenty cycles to end up as a blasted nut cart operator. I joined up to save the world!

— Cavendish, upon receiving a mission, "Time Out"

Balthazar Tiberius Cavendish[1] is a stuffy, formal British time traveler from the future who, alongside his partner, Vinnie Dakota, was permanently banished into Milo's time.

He is voiced by Jeff "Swampy" Marsh.


On the surface, Cavendish is generally a serious, self-focused man who can be rather rude, prudish, and condescending to the people around him while being completely oblivious to his own shortcomings.

He has an extreme dedication to his goal, regardless of what that goal is at that particular time or how he decided on it. His focus on the task at hand often leads him to quickly disregard logic, and this dedication to his sense of purpose remains even when he is acting against the direct orders of his boss.

Cavendish became a time traveler long ago in hopes of saving the world and tends to see himself as 'the hero', often playing at leader while he's on missions with his partner. Despite this usual bravado, Cavendish occasionally falls back and becomes nervous and unsure when things start to get serious.

PTS 84

When he isn't focused on a task or a mission, Cavendish is much more willing to enjoy himself and has given in to Dakota's suggestions on a number of occasions. He is very much prone to goofing off alongside his partner, quickly agreeing to a bet in which the loser had to stuff his pants full of pistachios, and like Dakota, was very excited to go trick-or-treating for the first time.

Cavendish has shown himself to have a strong disliking for animals and a severe lack of knowledge surrounding them. This can be seen when he refers to a gummy bear as a 'rubbery-like-woodland-creature', and again when he asks Dakota what his Halloween costume was supposed to be, implying that he'd never seen a giraffe before.

Physical Appearance[]

Cavendish is a tall, thin man with short gray hair and a large grey handlebar mustache that is curled at the tips. He has a pale complexion and bright, turquoise eyes, often sporting a rather judgemental expression.

Dressing as though he's from the 1870s, Cavendish wears an olive green three-piece suit with coat-tails that go down to his knees. His brown vest features four gold colored buttons and the chain of his pocket-watch, and beneath this, he wears a white dress shirt with a pink tie.

He wears a small, matching green top hat with goggles, a pair of square, frameless glasses, and a pair of black and white dress shoes.


When he was younger, Cavendish had thick eyebrows and short, honey-blond hair with bangs that parted in the middle and curved up at the sides. Notably, he did not have a mustache and wore a pair of glasses with thick black frames.

Cavendish wore a deep-blue, futuristic-looking top that has a thick, olive green collar that extends down his chest with three dark circles presented vertically down the collar. The outfit has long sleeves, with short secondary sleeves in the same olive green color, and two stripes at each wrist, with another around his waist like a belt. The main portion of the outfit extends behind him in a fashion reminiscent of coat-tails, and under this, he wore a pair of white pants tucked into a pair of knee-high black boots with grey cuffs.

Old Age[]

In old age, Cavendish wears a pair of pants that go up to his chest over a comfortable looking brown sweater vest. His dress shoes have been replaced with a pair of knee-high black boots with grey soles, and he carries around a brown cane, although he doesn't seem very dependent on it.

His hair has receded to the back of his head, and he's developed wrinkles. In sharp contrast to his usual appearance, his mustache is unkempt and droops at the edges. Cavendish's expressions seem much gentler with age.


Click here to view the history of Balthazar Cavendish.
Click here to view the history of Balthazar Cavendish.


Vinnie Dakota[]

Main article: Cavendish and Dakota's Relationship
MIS (84)

Dakota is Cavendish's partner in the Bureau of Time Travel. Cavendish initially expressed frustration at the lack of effort Dakota put into their missions and acted as though he was the leader of the two, often ordering him around. In spite of this, he's prone to goofing around and enjoying himself alongside Dakota when he's not focused on a task and has proven that his partner's presence and wellbeing are incredibly important to him.

Milo Murphy[]

Main article: Cavendish and Milo's Relationship

Initially, Cavendish paid Milo no mind, treating him as rudely as he did any other customer. Upon having Dakota point out Milo's proximity to nearly every one of their failed missions, Cavendish jumped to the conclusion that the boy was an enemy counter-agent sent to thwart their pistachio-based missions. He went on to treat Milo in a rude and condescending manner in spite of the boy's unwavering friendliness towards him.

His distrust in Milo finally came to an end when his partner asked the boy about the disasters, finding he was innocent. Cavendish came to treat Milo in a friendlier manner afterward and warmed up to him once they'd worked together to defeat King Pistachion. He's since come to appreciate Milo, and gives him a friendly greeting anytime they cross paths.

Cavendish also thanked Milo when he saved him and tried to warn him before he got frozen.

Zack Underwood and Melissa Chase[]

While he doesn't know Milo's best friends as well as he does Milo, Cavendish is on friendly terms with them. Initially, he'd met them when they confronted him at a middle school dance while he'd been spying on Milo, unaware of their theory that he was a vampire hunter. Eventually, Milo formally introduced the group, and they went on to save the world together.

Mr. Block[]

School Dance 29

"That never ceases to be amusing, sir."

Mr. Block was Cavendish's boss when he worked for the Bureau of Time Travel. While Mr. Block treated him with open contempt, Cavendish was always eager to prove himself and didn't tend to acknowledge his boss's rudeness. He often ignored Mr. Block's snide insults in favor of focusing on his mission but corrected him for getting their names wrong on purpose, and even expressed mild irritation when his boss continuously made jokes at their expense.

Cavendish did understand Mr. Block's point of view after he mocked them for claiming to have saved the world and reminds Dakota that it wasn't his fault that the timeline had reset itself, thus erasing any memory of their accomplishments.

After saving the world and failing to convince Mr. Block that they'd done so, Cavendish began to work against his orders without hesitation. He wasn't afraid to do the complete opposite of what Block wanted when he believed the world was in jeopardy, but still followed his orders and concerned himself over doing a good job when he'd been demoted to cleaning outhouses for insubordination.

Brick and Savannah[]

PTS 240

Brick and Savannah were fellow agents in the Bureau of Time Travel. While initially he saw them as peers and wondered why he wasn't receiving the same treatment that they do in the organization, he took their words to heart when they mocked him for being 'the lowest of the low'. While the first class time travelers constantly treat him badly, he doesn't seem to dislike them in return and has even asked for favors on a number of occasions. After asking nicely to borrow their limo and receiving a rude rejection in return, Cavendish didn't hesitate to steal it when the opportunity arose.

Since being demoted - having been tattled on by Brick and Savannah for destroying pistachios - Cavendish, alongside Dakota, had taken to doing all he could to ensure that the first class agents' pistachio-based missions ended in failure. He understands their skill as agents, knowing full well that there was no way they'd fail a mission without intervention.

Bob Block[]


Cavendish was beaming with excitement to be hired by Bob Block and find aliens with the rest of PIG, but when Bob informed him that he would be cleaning up the aliens garbage, he lost his excitement to work for Bob. Since then he has been trying to prove to Bob that he could be useful by showing Bob proof of aliens. But, he gives up on all hope of ever being promoted by Bob when Bob doesn't believe him when he states that he saw an alien abduction and decides to quit PIG, therefore ending his relationship with Bob Block.

Heinz Doofenshmirtz[]


Cavendish idolizes Professor Time to such an extent that he constantly wears a 'Professor Time' brand hat and has a pair of underwear with his face on it. He was thrilled to finally meet him in person and quickly introduced himself, going on to explain the future greatness of Professor Time to a very confused Doofenshmirtz. While later watching him prepare his time machine, Cavendish reminded Dakota that it was a historic moment.

Before long, however, Cavendish began to express annoyance at Doofenshmirtz' terrible decision-making skills and his tendency to make mistakes. He snaps at him on a number of occasions, from questioning his need for orange soda to showing open frustration that he'd had room for fake beards on his time machine but not a day setting. His anger at the situation boils over when a petty mistake causes the time machine to crash, stranding them on an island. Cavendish finally expresses his frustration by shouting at Doofenshmirtz for being such a huge disappointment.

His faith in Doofenshmirtz is later fully restored when the group develops a plan to fight against the Pistachions, eventually leading to a dead end, where Cavendish watched in awe as Doofenshmirtz made an inspirational speech. When Professor Time himself appears and greets Cavendish by name, he squeals in excitement.


Click here to view more images from Balthazar Cavendish.
The image gallery for Balthazar Cavendish may be viewed here.


“You know, I was aware that this was not the most glamorous of assignments... but dagnabit! I didn't study time travel for twenty cycles to end up as a blasted nut cart operator. I joined up to save the world!”
—Balthazar Cavendish[src]
“Where's my limo? Where's my fish tank? Where's my attractive partner?”
—Balthazar Cavendish[src]
“I'm not looking at animals you doltish snack hound! I'm looking for the boy whose thwarted our mission time and time again - the enemy agent.”
—Balthazar Cavendish[src]
“Did you know I used to play concert piano? I could have had an entirely different career! A different life. But instead, here I am. With you.”
—Balthazar Cavendish[src]
“Since we're going to die anyway I'd like to air some grievances!”
—Balthazar Cavendish[src]
“Well, apparently that is a message from fifty years ago that we have not, as of yet, made.”
—Balthazar Cavendish[src]
“You're just yelling words! Give him some actual information he can use!”
—Balthazar Cavendish[src]
“As per usual, I'll do the adult thing... and meddle with the time-space continuum no matter what the consequences.”
—Balthazar Cavendish[src]
“Do you levitate your mother like this! No! I don't think so!”
— Balthazar Cavendish


Season 1[]

Season 2[]


  • He is voiced by Jeff "Swampy" Marsh,[2] one of the show's creators.
  • Like Dakota, Cavendish is scarcely referred to by his first name.
  • He served as the inspiration for the Doctor Zone franchise's title character.
  • He seems to be allergic to feathers as seen in "Backward to School Night".
  • He knows how to pilot a plane.
  • His middle name was revealed to start with the letter "T" in "Look At This Ship".
    • Jeff "Swampy" Marsh revealed on Twitter that the "T" stands for "Tiberius".[3] Dan Povenmire later confirmed that this is a reference to James T. Kirk from the Star Trek franchise.
  • In the theme song Cavendish is seen running with a black cane. However, in the actual series, he is never actually seen with that cane.
  • He shares his first name with the Phineas and Ferb character Balthazar Horowitz.
  • Cavendish has his name in one episode title which is "Cavendish Unleashed".
  • *Ironically, he doesn't actually appear in that episode.


v - e - d Characters
Main Characters Milo MurphyMelissa ChaseZack Underwood
Supporting Characters Balthazar CavendishVinnie DakotaDiogeeMartin MurphyBrigette MurphySara MurphyAmanda LopezMort SchaefferBradley NicholsonElliot DeckerHeinz DoofenshmirtzPerry the Platypus
Recurring Characters Richard ChaseEileen UnderwoodMarcus UnderwoodChad Van CoffElizabeth MilderKyle DrakoMs. MurawskiNolan MitchellScottBrickSavannahMr. BlockOrton MahlsonLydiaJoniNealBob BlockFrancis Monogram
Story Arc Characters Orton MahlsonPistachionsSentient BlobKing PistachionDerekGiant PistachionLost DakotasPhineas FlynnFerb FletcherCandace FlynnBuford Van StommBaljeet TjinderIsabella Garcia-ShapiroOctaliansAlien CommanderAlien PilotLoabKhoneOrgaluthCavenpuss
Families Murphy: Martin MurphyBrigette MurphySara MurphyMilo MurphyDiogeeJoey MurphyLaura MurphyNate MurphyGrandpa MurphyGrandma MurphySheriff MurphyMurphy Family
Underwood: Marcus UnderwoodEileen UnderwoodZack UnderwoodZeldaCornelius Underwood
Chase: Richard ChaseMelissa ChaseAbigail Chase
Jefferson County Middle School Students: Milo MurphyMelissa ChaseZack UnderwoodAmanda LopezMort SchaefferBradley NicholsonChad Van CoffLydiaJoni
Staff: Elizabeth MilderKyle DrakoMs. MurawskiNolan MitchellMs. WhiteFredMr. HartoonianMs. Whipley
Related: Elliot DeckerMs. DeckerMs. BaxterMr. Blunt
Cavendish and Dakota's Jobs Bureau of Time Travel: Mr. BlockGretchenBrickSavannah
Paranormal Investigation Group: Bob BlockArmory Security GuardBalthazar CavendishVinnie Dakota
Related: Lost Dakotas
The Doctor Zone Files Show and Cast: Orton MahlsonDoctor ZoneTime Ape
Fans: Sara MurphyKrisWallyJosh
Non-Human Characters Pistachions: King PistachionDerekGiant PistachionDennisJerry
Octalians: Alien CommanderAlien PilotLoabKhoneOrgaluthBeekMantelDorsalZorb Zerbavoir
Phineas and Ferb Characters Heinz DoofenshmirtzPerry the PlatypusFrancis MonogramCarl KarlPhineas FlynnFerb FletcherCandace FlynnJeremy JohnsonBuford Van StommBaljeet TjinderIsabella Garcia-ShapiroVanessa Doofenshmirtz
Other Characters Kids and Teens: NealThe LumbermaxesMaxJackieCharlene and Sharon BruleeHenryWendyLizzyLola SunderguardJohn and Jake JacksonRain and StormAnthony and AshleyBilly BisonToby
Adults: ScottVeronicaTobias TrollhammerVictor VerliezerClyde RickenbackerMr. BruleeMrs. BruleeShelleyTrucker TedForemanDaveEuniceJavierJimSlashGretchen FlammkuchenPhillipColonel NibletLieutenant TennantJefferson G. CountyEuniceMayorCaptainSergio McGuinnessWilsonDr. Not SorryRusty WallaceNASCAR RacersMike JoyBasil BravoJoseDirectorMuseum Tour GuideSallyPower Plant EmployeePete and TinaCorn Field FarmerEvan ChaffeToby's GrandfatherVlad and IgorFuller and HastingsNature Surveyor
Animals: LlamasRecurring RaccoonZippyAgent GPioBeauregardCyborg BearRex
Misc: Lardee BoyC.I.D.D.AliensSentient BlobCavenpussMinor Characters