Xavier Riddle and the Secret Museum Wiki

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Xavier Riddle and the Secret Museum Wiki


Xavier Riddle is the titular eponymous protagonist of the series, Xavier Riddle and the Secret Museum, being one of three main human characters: himself, his sister Yadina and their friend Brad.


Xavier is a young boy with tan skin and shiny black hair. He wears grey-blue pants and black sneakers over white socks.

He wears a red hoodie with the hood up, "alien"-style antennae on it, and a black "X". This iconic hoodie contains the translator which allows him (and it seems, also Yadina and Brad, despite not wearing one too) to understand non-English speaking historical figures.



Xavier is the leader of his group with Yadina and Brad. He appears to be an excitable kid who is eager to go back in time and meet various historical figures. He is described as a kid who loves everything (especially art and basketball), but lives for adventures. He also enjoys photography. Xavier enjoys sharing interesting information about the heroes that the kids meet with his friends. Although Xavier is a friendly kid, sometimes he can be rather insensitive. For example, he dissed Dr. Zoom in I Am Maya Angelou, annoyed Yadina in I Am Confucius, and excluded Jamie from freeze tag in I Am Arthur Ashe. However, he always works to correct his mistakes.


Click here to view the history of Xavier Riddle.
Click here to view the history of Xavier Riddle.


Concept art of Xavier done by Chris Eliopoulos
  • In concept art, he was originally white, had brown hair, black pants, a red sweater, and lightning bolts instead of antennae.
  • The "X" on his hoodie stands for Xavier.
  • As of November 2, 2019, he has a different voice on the show's official website. The reason for this is unknown, though in the case of characters voiced by children this usually occurs when the character's voice actor become old enough that their voice deepens.
  • The inspiration for Xavier came from Brad Meltzer's own son.[3]
  • Xavier might have a crush on Sally Ride, as he blushed at her.
  • In the Hebrew dub, he is renamed to Daniel.




ved Characters
BerbyBrad Meltzer (character)Dr. ZoomXavier RiddleYadina Riddle
Historical Figures
Johann Sebastian BachMarie CurieMary ShelleyHarry HoudiniHelen KellerAlexander Graham BellFlorence NightingaleGeorge Washington CarverLeonardo da VinciAmelia EarhartIsaac NewtonGolda MeirWinston ChurchillCleopatraCatherine the GreatTomioka TessaiGeorge WashingtonSusan B. AnthonyZora Neale HurstonCharles DickensWright BrothersBronte SistersMark TwainAbigail AdamsJulia ChildNeil ArmstrongJackie RobinsonAnna PavlovaMary LeakeyAlexander HamiltonTheodore RooseveltEleanor RooseveltLou GehrigMarie OwensJackie Joyner-KerseeSally RideJunko TabeiNikola TeslaNellie BlyMaya AngelouFrederick DouglassLouis PasteurRachel CarsonKate WarneSir Arthur Conan DoyleCesar ChavezDolores HuertaConfuciusSacagaweaMary AnningCharlie ChaplinBillie Jean KingArthur AsheRosa ParksThurgood MarshallHarriet TubmanWilma RudolphJonas SalkJesse OwensElla FitzgeraldJames NaismithTemple GrandinAlbert EinsteinCarol BurnettAbraham LincolnJane JacobsEdmund HillaryCelia CruzIbn BattutaBeulah Louise HenryJigonsasehRukmini DeviBob RossFred Rogers
Minor Characters
HarperButterfly Club LeaderOlder GirlFearless JeanMurrayAnne SullivanBelleHelen's special teacherΠPoppyBell's MotherHelen's escortGeorge (I Am Alexander Graham Bell)Next Door NeighborFlo's petFlo's neighbor's dogBasketballerRobotterMonaAmelia's momAmelia's teacherGolda's MomTrike KidTurtlePark RangerReginaJinCharlieBenjamin and TheodorePhillipKing PtolemyCleo's catRiddles' momRiddles' dadRiddles' grandmaMatthiasBrad's dadBrad's granddadBrad's great-granddadRiddles' mom's momTomioka's FatherYadina's great grandmaLawrenceDaniel Read AnthonyGuelma Penn AnthonyGertieYoung ManOld ManJulia's GrandmotherMallie RobinsonSarahBrianKid in a green coatSarah's dadBrendan ConnollyGirl (I Am Marie Owens)TylerBoy 1LionQueen of ClubsJohn AdamsAnna's teacherJack PavlovaXavier and Yadina's great great grandmotherDjuka TeslaMacakAlbertJules VerneJimmyTommyEggertonLennyBig KidBand LeaderMaiLewis and ClarkJosephHannah ChaplinBobby RiggsJamieTennis BoyTennis OfficialSkater BoyBus DriverGentlemanPoppy the DogKitty the CatFredThurgood's momBen and Rit TubmanSlave Owner (I Am Harriet Tubman)Wilma's sistersRufusRunners on SidelinesBenJosiah CrawfordTenzing Norgay