Humberto Carrillo

In October 2019, it was announced that as part of the 2019 draft, Carrillo was drafted to Raw, where he received a push, including a tag team match with former MMA fighter Cain Velasquez in his home country, Mexico. Carrillo made his debut on the October 21 episode, losing to WWE Universal Champion Seth Rollins and had two singles matches against the WWE United States Champion AJ Styles on Raw and Crown Jewel. Carrillo would get his first win on the main roster, teaming with Ricochet and Randy Orton to defeat The O.C. (A.J. Styles, Karl Anderson, and Luke Gallows) by pinning Styles. This would earn Carrillo a title shot against Styles but he was attacked by The O.C. before the match. On the December 16 episode of Raw, Carrillo competed in a #1 Contender's Gauntlet match for the United States Championship but was defeated by Andrade after he was unable to continue following a DDT on the concrete floor which would sideline him for several weeks. He would return on the January 20, 2020 episode of Raw saving Rey Mysterio from an attack by Andrade thus setting up a match between Carrillo and Andrade for the United States Championship at the Royal Rumble. However, Andrade was able to retain, only for the following night on Raw, when Zelina interfered and got Andrade disqualified in another match with Humberto, Humberto snapped in a rage, and gave Andrade a dose of his own medicine with a Hammerlock DDT onto the exposed concrete, resulting in Andrade being (kayfabe) written off due to injury. Following this, Humberto would begin a feud with his real-life cousin Angel Garza who Zelina introduced as her newest protege and proceeded to attack him on the February 3, 2020 episode of Raw. This set up a match between the two at WWE Super ShowDown, where Humberto was defeated by Garza. On the March 2, 2020 episode of Raw, Humberto teamed with Mysterio to defeat Andrade and Garza where he pinned Andrade, earning himself a United States Championship match at Elimination Chamber. At the event, Humberto was unsuccessful in capturing the United States Championship from Andrade. On the May 4 episode of Raw, Carrillo participated in a last chance gauntlet match to determine the final competitor in the The Money in The Bank ladder match where he entered fifth, defeating Bobby Lashley by disqualification, Angel Garza, and Austin Theory but lost to the returning AJ Styles.

On the December 5 edition of NXT, Carrillo would make his televised return when he teamed with Raul Mendoza in a losing effort against Steve Cutler and Wesley Blake of The Forgotten Sons. On the January 16, 2019 edition of NXT, Carrillo competed against Johnny Gargano in a losing effort.

On the January 15, 2019 edition of 205 Live, Carrillo made his main roster debut when he answered the WWE Cruiserweight Champion Buddy Murphy's open challenge in a losing effort. Despite this, General Manager Drake Maverick revealed after the show that Carrillo has joined the 205 Live Roster and will compete at the WWE Worlds Collide Tournament at the Royal Rumble Axxess. At the event, he defeated Zack Gibson in the first round before losing to Velveteen Dream in the quarterfinals. The following week, Carrillo scored his first win on the brand defeating Gran Metalik. On February 5, 2019, Carrillo competed in a fatal four-way elimination match to determine who would challenge Buddy Murphy for the WWE Cruiserweight Championship at Elimination Chamber, which Carrillo lost. On August 27, 2019, Carrillo defeated Oney Lorcan to earn a title shot against Drew Gulak for the WWE Cruiserweight Championship at Clash of Champions. At Clash of Champions, he was defeated by Gulak, in a triple threat match also involving Lince Dorado.

Humberto Carrillo is the cousin of Angel Garza, the nephew of Héctor Garza, the grandson of Humberto Garza, the son of Humberto Garza Jr., the grandnephew of Mario Segura, the second cousin of Máscara Púrpura, the second cousin of El Ninja Jr. and the cousin of El Sultán. On April 11, 2019 Carrillo got engaged to his girlfriend. On July 27, 2019, Carrillo married Tania Ramirez.

On August 23, 2018, Humberto Carrillo started competing for the WWE and signed his official contract on October 18, 2018, along with other recruits. Prior to that, Carrillo had made an appearance on the September 19 edition of NXT against Jaxson Ryker in a losing effort.

On December 16, 2012, Carrillo began his professional wrestling career as Último Ninja when he performed at Wrestling in Monterrey when he teamed up with El Ninja Jr. in a winning effort against Genocida and The Beast. Último Ninja would then wrestle in Mexico for the next six years in other wrestling promotions including Casanova Pro, Nueva Generacion Xtrema, Lucha Libre Del Norte, Lucha Libre Azteca, The Crash Lucha Libre, Chilanga Mask, Empresa Regiomontana de Lucha Libre, RIOT Wrestling Alliance, Promociones MDA and many more. During his career in Mexico, Último Ninja won numerous championships including the PCLL Tag Team Championship, the LyC Tag Team Championship, The Crash Tag Team Championship and the WWA World Middleweight Championship. Último Ninja has also competed in Pro Wrestling Noah, Baja Stars USA, Martinez Entertainment Lucha Libre Mexicana, and Major League Wrestling.

Humberto Garza Carrillo (born October 20, 1995) is a Mexican professional wrestler signed to WWE, where he performs on the Raw brand. He previously worked under the ring name Último Ninja while wrestling in Mexico. He is a third-generation luchador son of Humberto Garza Jr, Grandson of Humberto Garza. He is the nephew of Hector Garza and the cousin of current WWE wrestler Angel Garza.