Sleeper

The sixth symbiote offspring of Venom, Sleeper was secretly gestating aboard a S.H.I.E.L.D. vessel and emerged with a unique ability to produce sedative chemicals rather than the rage typical of its kin, making it unlike any symbiote before it.

Born from the darkest corners of Marvel's symbiote mythos, Sleeper made a striking entrance in 2019's Venom #17, brought to life by writer Donny Cates and artist Iban Coello during a landmark era for the symbiote corner of the Marvel Universe. This Modern Age creation has carved out a genuine niche across titles like Venom, Venom War, and All-New Venom, sharing pages with heavyweights like Eddie Brock, Dylan Brock, and Spider-Man himself. With 33 catalog appearances and a presence that has persisted well into the 2020s, Sleeper is proof that the symbiote family tree still has fascinating branches worth exploring — a compelling addition to one of Marvel's most viscerally beloved mythologies.