In August 2020, the recording for the first eight episodes of season 1 was completed, and Lucas Bermudez of Screen Rant predicted that more episodes of Helluva Boss would be released to YouTube 'as a web series' because of the COVID-19 pandemic. Writing production for more episodes began in December 2019, with 8 episodes ordered. Medrano contributed her writing and animation skills to the episode. On November 25, 2019, the pilot was released on Medrano's YouTube channel. At some point, Rogers asked Jinkx Monsoon to voice a character in Helluva Boss, but Monsoon wanted to voice 'stock characters' instead, so they did so, voicing various background and one-off characters in the show's first season. Lucas Bermudez of Screen Rant attributed the success of Hazbin Hotel as the sole reason for Helluva Boss being greenlit.

The company Horseless Cowboy assisted Medrano with voice work during the first season, with Richard Horvitz and Medrano voice directing. The pilot of Helluva Boss was cast by voice actor Kellen Goff and voice directed by Medrano and Rick Zieff. As Medrano described it, while both shows share the same setting, Helluva Boss follows 'characters and societies that already exist in Hell,' with the main focus being on interpersonal relationships between characters, while Hazbin Hotel is about redemption and consequences.

The show features a different cast of characters and a different storyline than Hazbin Hotel, another show created by Medrano, despite taking place within the same universe. With the help of an ancient book obtained from Stolas, a Goetial demon of Hell, they access the human world to complete their tasks on order from demons in Hell. The members of I.M.P include Blitzo (pronounced 'Blitz'), the boss of the venture, along with weapons specialist Moxxie, powerhouse Millie, and receptionist hellhound Loona. The series follows the employees of I.M.P (Immediate Murder Professionals), an imp-run assassination company in Hell, on their many different jobs. On March 27, 2023, the show was confirmed to be renewed for a third season, in active production. The second season premiered on July 30, 2022. The first season was released exclusively to Medrano's YouTube channel, as she has done for other animations. The show is produced by SpindleHorse Toons. The pilot was released on November 25, 2019, while the first episode of the first season was released on October 31, 2020. It revolves around the misadventures of the employees of I.M.P, an assassination company in Hell. Helluva Boss is an American adult animated web series created by Vivienne 'VivziePop' Medrano.

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