Valk is a cheerful, upbeat music artist standing at 5'2" (157 cm) He is one half of the famous in-universe idol group Flipside, working alongside his brother Dom. They host the game's Phestivals, announce Multiplier matches, provide tutorials, and sing original tracks like "THE FLIPSIDE" and "SEE YOU ON". Valk is positive, energetic, and a bit pushy when trying to sell his music albums. He wears a yellow pinstriped suit with neatly rolled-up sleeves revealing a silvery interior, dark grey/black pants, and black shoes. He sports yellow shutter shades, a microphone and earpiece combo in his right ear, and his signature gear—a grey Valkyrie helmet with yellow wing pieces. He has small yellow horns protruding above his eyes near his temples.