T︠S︡entralʹnai︠a︡ kinostudii︠a︡ detskikh i i︠u︡nosheskikh filʹmov imeni M. Gorʹkogo ; rezhisser-postanovshchik, Tatʹi︠a︡na Lioznova ; avtor st︠s︡enarii︠a︡, I︠U︡lian Semenov
created by Toby Whithouse ; written by Toby Whithouse and Sarah Dollard ; produced by Radford Neville ; directed by Daniel O'Hara ; BBC Cymru Wales drama production