Rolando is a possessor demon known as an infestor in-universe. While he normally dons a disguise to fool others into thinking that he is a human, he has distinctive fish-like traits in his true form, hinting that he likely originates from the Envy Ring in Hell.
He only appears in the episode "Ghostf**kers" of Helluva Boss, where he serves as the main antagonist and the culprit behind the murder of I.M.P.'s client.
History[]
Not much is known about Rolando's life prior to settling on Earth to open up a hotel known as The One-Star Wonder to lure in unsuspecting humans only to kill them in cold blood. When Blitzo and Millie arrived to find the murderer of their client, Rolando greeted them in his human disguise and acted cordial and welcoming towards them. However, it didn't take long for him to reveal his true colors, tormenting Blitzo with hallucinations of Millie and his late mother dying before revealing his true nature to the two imps.
After Blitzo and Millie to a standstill, Rolando possessed Blitzo and tortured him by forcing him to watch a compilation of his worst memories from inside his head. When a concerned Millie rushed to Blitzo's aid, Rolando took control of his body and attacked her as a sobbing Blitzo begged him to stop from inside his own subconscious, only for Rolando to sneer and revel in his negative feelings.
Once she managed to gain the upper hand, Millie managed to exorcise Rolando from Blitzo's body by knocking him just over the pool, causing the infestor to escape through his mouth. Blitzo then knocked his vacuum into the pool, killing Rolando instantly.