University student secretly studying drama, navigating class differences and family secrets.
Steve becomes a direct social and romantic rival to James.
Steve belittles and repeatedly one-ups James during team games, leading to a fight in which James reveals he is Hayley's new boyfriend.
They are a young couple whose hidden relationship drives the mistaken-family Christmas premise.
The plot identifies James and Hayley as a student couple who secretly plan Christmas surprises for each other.
Their father-son relationship is strained by James's hidden decision to study drama.
Humphrey is described as James's father, and he initially believes James is training at the Royal Military Academy Sandhurst.
Their extended-family connection becomes relevant when the two households are brought together.
Iris is Humphrey's sister, while Humphrey is James's father, establishing Iris as James's aunt.
Explore the full interactive character relationship map of Your Christmas or Mine?