Clyde 1x19 250px

Clyde Elementary intertitle Sherlock's Pet

Character Information
Status: Alive
Actor: 2 Horsfield Tortoises
First Appearance: "The Red Team"
Family: Len Pontecorvo (former owner)
Episode Count: 20
It's only a small sample, but there is mounting evidence that he wishes you harm.
— Holmes to Kitty about Clyde, "Rip Off".

Clyde is Sherlock Holmes' Horsfield tortoise.


Clyde is a tortoise previously owned by Len Pontecorvo. Sherlock Holmes and Len both visited the same conspiracy theory forums, so when no one had heard from Len, Sherlock decides to visit his house where he finds him dead. While Sherlock is looking for evidence, he finds Clyde and brings him home with him. From his sarcastic comments that tortoises make an excellent soup, Joan Watson initially thinks Sherlock intends to fatten and eat Clyde, but by the end of the episode it becomes clear that Sherlock is in fact fond of Clyde and never intended to harm him; he loves tortoises, remarking that "Clyde will likely outlive both of us."

Clyde is occasionally seen around the brownstone or Watson's apartment. He usually resides in a terrarium, but is often being used by Sherlock as either a prop in a crime-scene model or as a paperweight. He is immensely fond of lettuce and other greens, which are fed to him by Watson and Holmes.

Season One

Clyde makes his first appearance at 5:55 in his terrarium at Len Pontecorvo's home. Holmes takes him home in order that he won't starve to death. Holmes finds a listening device hidden in a fake rock in Clyde's terrarium leading him to believe that Len's paranoia may be justified. ("The Red Team") At 35:22, Holmes uses Clyde to represent an ambulance on a map of New York City in order to deduce how a real ambulance evaded a series of road blocks during a winter storm. ("Snow Angels")

S01E13-Clyde and bowl
Clyde's first appearance.

S01E19-Clyde the ambulance
Clyde the Ambulance.

Season Two

At 13:58, Watson is woken by a lettuce eating Clyde whom Holmes has put on her bed to wake her. Holmes is endevouring to be a more considerate flat mate and believes this manner of waking Watson to be polite. Watson brings Clyde downstairs to his terrarium. ("We Are Everyone") At 22:00, as a distraction from the case of who murdered Rada Hollingsworth, Holmes sees which items in the Brownstone are lighter or heavier than Clyde. ("Tremors") At 28:27, Holmes uses Clyde to wake Joan up. Clyde is wearing a blue "turtle cozy" that looks like a shark fin knitted for him by Ms. Hudson. At 39:15, he wakes her again with Clyde who is wearing a different cozy with a note that says "Have you seen what's on TV?". ("The Many Mouths of Aaron Colville")

S02E03-Clyde wakes Watson
Clyde first wakes Watson.

S02E10-Holmes weighs Clyde
Lighter or heavier than Clyde?

S02E19-Clyde in shark cozy

Season Three

After Holmes abruptly leaves for England, Clyde is seen being cared for by Watson at her apartment at 4:03. ("Enough Nemesis To Go Around") At the episode beginning, Clyde is eating lettuce while Kitty complains to Holmes that she won't take Clyde to Joan's apartment in Chelsea. Holmes indicates that Clyde resides with him on weekends and with Joan on weekdays. ("Bella") At 1:04, Clyde is taking part in an experiment with Kitty in which he presses a lever to shock her or to get food. Holmes wants to find out if reptiles can display empathy but warns Kitty that Clyde may want her to be harmed. ("Rip Off") At the episode start, Kitty talks to Joan about taking care of Clyde while Watson was in Copenhagen with Andrew. ("Terra Pericolosa")

S03E01-Clyde at Joan's
Clyde at Joan's.

S03E04-Clyde eating lettuce
Clyde snacking.

S03E05-Clyde with lever
Clyde shocking Kitty.

At 29:11, Clyde paints a canvas on the floor using a device Sherlock has attached to his back while Watson discusses meeting Andrew's father and realizes she doesn't want a normal relationship. ("Hemlock") At 10:10, Clyde is seen eating lettuce and listening to music Holmes is playing while trying to determine the identity of Everyone member "Sucking Chest Wound". Holmes catalogues the songs Clyde likes and dislikes. ("One Watson, One Holmes") At 23:03, Clyde is seen eating lettuce from a plate in the centre of the kitchen table while Holmes reviews plant manuscripts. ("Under My Skin")

S03E13-Clyde painting
Clyde enjoys painting.

S03E19-Clydes musical preferences
Sorry Tyler Swift.

S03E21-Watson Clyde Holmes at table
Clyde reading the Voynich Manuscript.

Season Four

At 0:45, Holmes is seen cooking snacks for Clyde to help increase his mineral intake. At 14:23, Clyde is seen in his terrarium beside Holmes while he works on a computer. Watson comments that Clyde is enjoying the snacks Holmes made and may also be enjoying his "dinner date" since Holmes is dressed in a tuxedo. Holmes indicates that his dinner date is his father, Morland Holmes and compares his father to Clyde as both are "cold blooded reptiles". ("Tag, You're Me") At the episode beginning, Watson discovers a box in the refrigerator containing Clyde who Holmes has placed there to hibernate. Clyde usually hibernates in a burrow in the back yard but Holmes considers the New York winter's climate too unpredictable. ("Murder Ex Machina") At 36:42, Clyde has emerged from hibernation and is in his terrarium while Sherlock does hot yoga. ("Hounded") At 26:20, Lin Wen says she likes Clyde but he isn't seen. ("All In")

S04E03-Clyde eating Holmes snacks
Clyde eating Holmes' snacks.

S04E07-Clyde hibernation box
Clyde's hibernation box.

S04E16-Clyde hot yoga
Clyde hot yoga.

Season Five

At 27:10, Watson is seen chopping vegetables and then feeds Clyde as she and Holmes discuss their case. ("Worth Several Cities") At 36:02, Clyde is seen crawling on the floor as Holmes has placed a venomous snake in his terrarium. ("Ill Tidings") At 0:35, Clyde eats lettuce while Lin Wen compliments Watson on her scallion pancakes. ("Bang Bang Shoot Chute")

Watson feeds Clyde.

S05E06-Clyde crawling
Clyde going for a walk.

Clyde doesn't like pancakes.

Season Six

In the wake of Mycroft's death, Morland visits the Brownstone and handles Clyde. He discusses Clyde's age and who will care for him once Sherlock dies. ("The Adventures of Ersatz Sobekneferu") Sherlock and Watson file Clyde's claws. ("Through the Fog")

S06E10-Clyde and Morland
This tortoise appears to be quite young.

S06E14-Clydes claws filed
Tortoises have terrible hearing.


  • Clyde is played by two Russian tortoises,[1] which are rotated out after each take.[2]
  • Music Clyde likes includes Brahms and Goatwhore. He doesn't like Tyler Swift. ("One Watson, One Holmes")
  • Watson unknowingly eats soup from one of the bowls used for Clyde's baths. Holmes uses Clyde's DNA as one of several samples to have a lab honestly match crime scene DNA to. ("Art Imitates Art")
  • Kitty has agreed to take Clyde once Sherlock and Joan die. Her son Archie will take him after Kitty dies. ("The Adventures of Ersatz Sobekneferu")


Elementary intertitle Elementary Characters
Main Characters
Sherlock HolmesJoan WatsonCaptain Thomas GregsonDetective Marcus Bell
Recurring Characters
AlistairAthena and MinervaJonathan BloomRoy BookerAgent BurkeClydeGina CortesFrank Da SilvaDuaneEveryoneAgent GephardtDr. GrannisChristopher GrayDel GrunerHalconEmily HankinsDr. Eugene HawesFiona HelbronWilliam HullShinwell JohnsonEmil KurtzGareth LestradeAlfredo LlamosaMarchefElana MarchDean McNallyChantal MilnerAndrew MittalSanthosh MittalSebastian MoranJamie MoriartyAgent MullerRandyOscar RankinCandace ReedMichael RowanTim SherringtonTall BoyJoshua ViknerSir James WalterAgent WhitlockTyus WilcoxKitty Winter
The Irregulars
Mr. BriggsC.Harland EmpleGayMs. HudsonLucMasonThe NosePhil SimmsAgatha SpurrellTeddy
Paige CowanHannah GregsonMay HolmesMorland HolmesMycroft HolmesEstella LlamosaHenry WatsonMary WatsonOren WatsonLin Wen
Minor Characters
CassieLucas BundschHoward EnnisMistress FeliciaZoya HashemiRuslan KrasnovGwen and Olivia LynchNigella MasonTy MorstanRemusRomulusJennifer SaylesShauna ScottHenry Watson