Top hat

Josh wears a top hat in Victorian London. (TV: The Snowmen)

A top hat was a type of hat.

The Eleventh Doctor owned a top hat, which he wore at Amy and Rory's wedding, (TV: The Big Bang) after having been poisoned by River Song in Nazi Germany (TV: Let's Kill Hitler) and again to conceal a device that allowed him to lure the Squall back into their dimension of origin. (PROSE: Paradox Lost) During his retirement to the Victorian era, he wore a battered top hat, (TV: The Great Detective), and wore it again on Trenzalore. (TV: The Snowmen)

When visiting the 1814 frost fair, the Twelfth Doctor wore a navy blue top hat which he gave to a little girl and replaced with a black one. (TV: Thin Ice)

While trying to take Peri Brown to London in 1899 for a holiday, the Sixth Doctor wore a dark top hat. (PROSE: Players)

Occasionally, the Eighth Doctor wore a top hat, (COMIC: The Curious Tale of Spring-Heeled Jack; AUDIO: Other Lives)

Shockeye and the Second Doctor, partially converted to an Androgum, wear gunmetal grey top hats when going out for a meal on Spain during the year 1985. (TV: The Two Doctors)

Ryan Sinclair and Graham O'Brien wore top hats when they first met Mary Shelly and Ashad. (TV: The Haunting of Villa Diodati)

Theodore Maxtible wore a black top hat. (TV: The Evil of the Daleks)

The Master in his 'spy incarnation' wore a black top hat when he confronted the Thirteenth Doctor on London during 1834. (TV: Spyfall)

Dr Simeon wore a black top hat, (TV: The Snowmen) as did the Great Intelligence when taking his form. (TV: The Name of the Doctor)

The Pied Piper wore a black top hat when posing as Elijah Spellman, director for Spellman's Magical Museum of the Circus. (TV: The Day of the Clown)

An incarnation of the Doctor, wearing a top hat. (TV: The Brain of Morbius)

A predecessor of the First Doctor wore a black top hat. (TV: The Brain of Morbius)

The Ringmaster of the Psychic Circus wore a crimson top hat. (TV: The Greatest Show in the Galaxy)