The Lion Guard Wiki
The Lion Guard Wiki

Scar: You know what to do, Sumu.

Sumu: And do it I will!

Scar and Sumu on his plan in The Scorpion's Sting

Sumu is a male scorpion from the Outlands and is the one responsible for stinging Simba with a deadly venom.

He is the former poisonous member of the Army of Scar.


Sumu is a large black scorpion with four gleaming red eyes and a soft gray triangular marking on his forehead. He has other gray markings all over his body, including three gray spots on a pair of very large pincers. His tail is tipped with a sharp stinger that is covered with a dangerous venom; the only known antidote is ash from the Outland volcano. 


Described to be a highly dangerous and deadly killer, Sumu will go to any lengths of killing his victim(s) with a venomous sting. Fierce and loyal to Scar, Sumu will follow his commands without hesitation, though is not above feeling anxious about fighting, as seen when he learns that Scar plans to bring the Lion Guard into the Outlands Volcano, proving that he is a careful attacker. Sumu is generally quiet and prefers to let others speak.


The Scorpion's Sting

Sumu shows off his stinger

Scar has recruited Sumu to sting Simba on the anniversary of Scar's defeat. At first, it seemed like he was as large as a lion, but as the camera humorously zoomed out, he is revealed to be an average-sized scorpion. Despite being much larger, Janja is terrified of him, jumping onto Reirei and Kiburi to avoid his venom, with only Ushari fully aware of the role that he will be playing. After informing the leaders of Sumu's exact role in the plan, Scar sends Sumu out to inject Simba with his venom.

About to sting King Simba

Sumu is later seen climbing Pride Rock while Rafiki and the Pridelanders sing, Good King Simba for the Kumbuka celebration. During the song, Sumu seizes the opportunity to sting Simba on the tail, poisoning him. The diminutive arachnid then makes a dash for the Outlands, where he is later spotted by Ono who suspects him to be the cause of Simba's predicament. Kion then leads The Lion Guard after him. The young lion pounces on the scorpion when close. But when it seems like he's gotten him, Kion notices the scorpion has escaped down a hole. Ono then investigates above. He sees Sumu escaping out the other side of the tunnel, which leads back into the Outlands

A confused arachnid: "You want the Lion Guard to come here?"

After returning to the Outlands Volcano, Scar praises Sumu for his work. The evil ghost then commands Ushari to be ready, as the Lion Guard will be arriving for the volcanic ash to heal Simba, to which the evil snake agrees to do. Sumu then shows confusion, questioning Scar on why he'd want the Lion Guard to come to him. Scar then informs Sumu that he has helped him to set the perfect trap, before laughing ominously. Sometime after this, Sumu abandons the army. As a result, he does not take part in the battle for the Pride Lands in which Scar's ghost is defeated, Ushari is killed, and Jasiri takes over the Outlands in Scar's place.


  • He is one of the show's antagonists that has a limited amount of screen time.
  • He is the first character in the show who is an invertebrate, as well as the first invertebrate to speak.
  • Sumu is the Tanzanian red clawed scorpion. He mostly resembles an emperor scorpion, but that species doesn't have deadly venom like him.
  • He is the fourth venomous villain in the show, the other three being UshariKenge, and Ora.
  • Sumu's voice actor also voices Njano, Big BaboonPika and Komodo Dragon.
  • Sumu is one of the two members of Scar's army not to appear in the Battle for the Pride Lands, the other being Kenge. Seems likely that his only mission was to sting the King to death no longer needed or he witnessed what the power of roar can do to give up similar as Kenge.
Characters in The Lion Guard
The Lion Guard Members
Kion's Family
SimbaNalaNala's FatherKiaraMufasaAskariSarabiScarKovuVitani
Pride Landers
AjabuBasiBig BaboonBobokaBupuChamaChuraFikiriGenetGumbaHadithiHamuHayaHodariJohariJuhudiKambuniKiaziKifaruKinyongaKitendoKongweKovuKuchimbaKulindaKuluKwatoLainiMakuuMasikioMa TemboMbeyaMbuniMekundu BatsMjombaMuhangaMuhangusMuhimuMtotoMwenziMzahaNyuniOgopaOnaPorcupine BrothersPuaPumbaaRafikiShaukuShingoSwalaTamaaThe Bellow FellowsThurstonTiifuTimonTumbiliTwigaVuruga VurugaZazuZigoZitoZuri
Unnamed Pride Landers
Baby BaboonBaby Baboon's MotherBaby HippoBoboka's SonFemale DuckFemale HareFemale MonkeyFemale MouseFemale ServalFemale WagtailGumba's MotherHyraxJerboaKlipspringerLittle MonkeyMale BushbuckMale CheetahMale CrocodileMale MongooseMale OryxMale PorcupineMale ServalMale TurtleMale VultureMtoto's MomSable Antelope #1Timon's MaYoung AardvarkYoung HedgehogYoung RhinoYoung Rhino's MotherYoung ServalList of Minor Characters
CheeziChunguDogoDogo's SiblingsGoigoiJanjaJasiriKengeKiburiKijanaLionessMadoaMwogaMzingoNduliNjanoNneNukaNyataNyeusiReireiShupavuStrange CobraStrange LionSumuTamkaTanoTunuUshariWazaZiraWema
Back Landers
Tree of Life
AstutoBaliyoBingaCekFeliksHeng HengJannaKelyKirilMakiniNirmalaPashaPolinaPinguinoRamaRaniSasemSurakSãhasíTangaagimTsahUlluVaryaÃnanda
Unnamed Tree of Life
Astuto's KitsBaby GoatFemale Polar BearMale CamelPika
Other Animals
AzaadBambunBoginoChuluunMouse DeerDomogDughiFlamingo Girl #1Flamingo Girl #2HafifuHitashiKimyoKomodo DragonKrud'dhaLumba-LumbaMajinuniMama BinturongMpishiMweviMwiziNabasuOld CivetOraPãgalaSeisouShujaaSmunSokweTafuTenukTompokTuppUrohoYuki