Stranger

From Tardis Wiki, the free Doctor Who reference
A stranger approaches the church on Ruby Road. Fifteenth Doctor: "Once upon a time... ..late on Christmas Eve... ..a stranger came to the church on Ruby Road." (TV: The Church on Ruby Road [+]Loading...{"timestamp":"00:14","1":"The Church on Ruby Road (TV story)"})

Whilst at the Wash Inn, Jackie Tyler humourously noted to Elton Pope the absurdity that they were complete strangers while she was flashing him her knickers. (TV: Love & Monsters)

The Fifteenth Doctor referred to the woman who left Ruby Sunday on the steps of a church on Ruby Road as a stranger. (TV: The Church on Ruby Road [+]Loading...["The Church on Ruby Road (TV story)"])