Becoming Elizabeth is screen-written by Anya Reiss of Ackley Bridge and EastEnders. Reiss is also the creator, writer and chief producer alongside George Faber and George Ormond. Lisa Osborne serves as the producer.
Anya Reiss incorporated several talented icons in her achievement, including Alicia von Rittberg of Fury portraying Elizabeth I, Jamie Parker of Harry Potter and the Cursed Child playing John Dudley, Bella Ramsey of The Worst Witch and Game of Thrones depicting Lady Jane Grey, and Oliver Zetterström of White House Farm and The Midnight Gang enacting Edward I.
Other characters include Jamie Blackley of The Last Kingdom, If I Stay and Greed representing Robert Dudley, Tom Cullen of Black Mirror impersonating Thomas Seymour, Jessica Raine of Call The Midwife acting Catherine Parr, and Romola Garai of The Hour portraying Mary I.