Leonardo (Episode 2435)

The Waiter worked at a spanish restaurant where Derek Wilton wined and dined Mavis Riley in August 1984 after he returned to Weatherfield following an absence of two years to rekindle their fraught relationship.

The waiter knew Derek from his previous visits there and addressed him respectfully as "Mr Wilton", showing the couple to the bar for an aperitif before later conducting them to their table and bringing the menus.