Trina (Something Borrowed)
From Tardis Wiki, the free Doctor Who reference
Trina was a female human who lived in Cardiff in the 21st century. She was one of Gwen Cooper's friends and she and Megan, another of Gwen's friends, were bridesmaids at her wedding. She witnessed the Nostrovite attack and was crouching behind a chair when the Nostrovite was revealed. She was later dosed with retcon at the reception. (TV: Something Borrowed)