Elizabeth II (born as Elizabeth Alexandra Mary) has been Queen of the United Kingdom since 1952.
Elizabeth II first appeared to meet the residents of Sodor after her coronation. Gordon was honoured by pulling her train and Thomas sorted the coaches for it, while Edward cleared the line ahead. She was greeted and honoured by Sir Topham Hatt, and told the controller that she had a splendid run and wanted to meet the engines.
When Emily asked Gordon what kind of special he took, he mentioned Elizabeth II.
In a Really Useful Around the World segment for the Thomas' YouTube World Tour, Thomas had to collect Elizabeth II in London; but he did not realise this when she boarded the train, as he was so bowled over by all his other important looking passengers.
Elizabeth II also appeared in a special book, A Visit to London for Thomas the Tank Engine, to commemorate her 90th birthday, in which she invited Thomas, Annie and Sir Topham Hatt to her birthday celebration.
- Elizabeth II presumably appeared as an allusion to her coronation in the same year the book was published. The Reverend W. Awdry had also sent the royal family Railway Series volumes to read to the young Prince Charles and Princess Anne.