What Is Kira Kosarin's Net Worth? Kira Kosarin is an American actress and singer who has a net worth of $4 million. Kosarin is best known for starring as Phoebe Thunderman on Nickelodeon's "The Thundermans" (2013–2018). Kira has more than 30 acting credits to her name, including the film "Supercool" (2021), the TV movie "One Crazy Cruise" (2015), and the television series "Light as a Feather...