Arsseni Bultmann was born in February 2005 in Berlin. In 2012, he gained his first acting experience on the theatre stage in Maxim Gorki's "Wassa Schelesnowa" at the Berliner Ensemble (2012), where he played the boy Kolja, son of the revolutionary Rachel. This was followed by engagements for commercials (including Edeka and McDonald's) as well as a minor role in the film adaptation of "Aschenbrödel und der gestiefelte Kater" (2013), a mixture of feature film and filmed theatre performance.

Bultmann appeared as a supporting actor in several made-for-TV productions and movies such as Markus Goller's comedy "Alles ist Liebe" (2014), Sigi Rothemund's drama "Engel der Gerechtigkeit – Geld oder Leben" (2015, TV) and Matthias Schweighöfer's family comedy "Der Nanny" ("The Manny", 2015). He then played a leading role as the son of the female main character in Tomy Wigand's TV comedy, "Der Kotzbrocken" (2015), followed by leads in the children's film "Robbi, Tobbi und das Fliewatüüt" ("Robby & Toby's Fantastic Voyager", 2016) and the comedy "Schatz nimm Du sie" (2017) as the son of a divorcing couple.