Ruben Manupelli aka Dr. Cream is a producer from Rome and longtime collaborator of Quentin40. He has worked with Achille Lauro, Capo Plaza, Dark Polo Gang, Noyz Narcos, Gemitaiz, Fabri Fibra and Rasty Kilo, producing songs such as “Magicabula” by Junior Cally, "Bomber Ve," "Luna piè", “Trappo Zarro” by Edo Fendi, "Thoiry," and its double platinum "Thoiry Remix," which has over 50 million streams. These successes have established him as a prominent producer in the rap scene, capable of giving each of his tracks a unique identity and guiding them in the right direction.