Cathy Belton

In Miss Scarlet and The Duke Season 4, Eliza has taken over the business of Nash & Sons (not that he has any sons) and things are not going entirely smoothly, although help comes from some familiar sources. Outside of work, her relationship with William 'The Duke' Wellington builds towards a looming decision that will shape both their lives.

It's a few months after the end of Season One. Eliza Scarlet has solved her father's murder while her relationship with Inspector William Wellington, aka the Duke, continues to slowly simmer.