20 free Doctor Who: the Fifth Doctor trivia questions with answers — trivia quiz, new questions added Aug 2026.
The Fifth Doctor was TV's youngest incarnation of the Time Lord—and Peter Davison brought a cricket-loving, anxious energy that completely reimagined who the Doctor could be. Think you know his era inside and out? Time to prove it.
All 20 questions with answers and explanations. Play the quiz
Q 01Which actor was the youngest to portray the Doctor until Matt Smith took on the role?
Peter Davison
Peter Davison was 29 years old when he was cast as the Fifth Doctor, holding the record as the youngest actor in the role until Matt Smith was cast in 2009.
Q 02What unusual vegetable did the Fifth Doctor often wear on his lapel as part of his costume?
Celery
The Fifth Doctor wore a stick of celery, which he claimed would turn purple in the presence of certain gasses, indicating a perilous atmosphere.
Q 03Which of these characters served as a regular companion to the Fifth Doctor?
Nyssa
Nyssa of Traken traveled with the Fifth Doctor for a significant part of his era, having first appeared during the Fourth Doctor's final season.
Q 04The Fifth Doctor regenerated after being exposed to what deadly substance?
Spectrox Toxaemia
In his final story, 'The Caves of Androzani,' the Doctor sacrificed himself by giving his only antidote to Peri, leading to his regeneration from Spectrox Toxaemia.
Q 05Which story is widely regarded as the Fifth Doctor's regeneration story and a classic of the series?
The Caves of Androzani
The Caves of Androzani is Peter Davison's final regular appearance as the Fifth Doctor and is frequently cited by fans and critics as one of the greatest Doctor Who stories.
Q 06In which story did the Fifth Doctor make his first full appearance after regenerating?
Castrovalva
After regenerating in 'Logopolis', the Fifth Doctor's first full adventure where he recovered and began his travels was 'Castrovalva'.
Q 07What sport's attire, often associated with his costume, was worn by the Fifth Doctor?
Cricket whites
The Fifth Doctor's costume famously included a cream-colored Edwardian-style cricket attire, complete with a panama hat and a stick of celery.
Q 08Which recurring villain was responsible for the death of companion Adric during the Fifth Doctor's era?
The Cybermen
Adric tragically died while trying to stop the Cybermen's freighter from crashing into prehistoric Earth in the story 'Earthshock'.
Q 09What was the multi-Doctor anniversary special featuring the Fifth Doctor alongside past incarnations called?
The Five Doctors
For the show's 20th anniversary, Peter Davison's Fifth Doctor appeared in 'The Five Doctors', alongside four of his previous incarnations.
Q 10Which companion, an Australian flight attendant, kept wanting to get back to Heathrow Airport?
Tegan Jovanka
Tegan Jovanka, an Australian air hostess, initially stumbled into the TARDIS on her way to a new job at Heathrow and frequently demanded the Doctor take her back there.
Q 11In the story 'Kinda', what serpentine entity possessed Tegan and later reappeared in 'Snakedance'?
The Mara
The Mara was a gestalt, formless entity that preyed on beings through their dreams, possessing Tegan in 'Kinda' and returning to torment her in 'Snakedance'.
Q 12Which American botany student joined the Doctor's travels shortly before his fifth regeneration?
Peri Brown
Peri Brown, an American botany major, met the Fifth Doctor in the serial 'Planet of Fire' and was his companion during his regeneration in 'The Caves of Androzani'.
Q 13In which story did the Fifth Doctor face giant insect-like creatures that manipulate gravity?
Frontios
In 'Frontios', the Doctor, Tegan, and Turlough faced the Tractators, large insectoid beings led by the Gravis, who possessed powers over gravity.
Q 14Which villain commanded a vast, frog-like alien ship to exploit Earth's minerals in "Four to Doomsday"?
Monarch
In 'Four to Doomsday', the Fifth Doctor encountered Monarch, the leader of the Urbankans, who intended to invade Earth to exploit its resources.
Q 15In 'Resurrection of the Daleks', what led Tegan Jovanka to leave the TARDIS?
The overwhelming violence and trauma of the conflict
Tegan left the TARDIS in 'Resurrection of the Daleks' because the sheer amount of death and violence she witnessed became too much for her to bear.
Q 16Which story saw the Fifth Doctor and his companions encounter the Terileptils in 17th-century England?
The Visitation
In 'The Visitation', the Doctor, Nyssa, Tegan, and Adric arrived in 17th-century England and encountered the Terileptils, who were attempting to unleash a deadly plague.
Q 17What personality trait notably set the Fifth Doctor apart from previous incarnations?
His more vulnerable and indecisive nature
The Fifth Doctor was often portrayed as more vulnerable, sensitive, and at times indecisive, reacting to situations rather than always taking immediate command, a deliberate contrast to the Fourth Doctor.
Q 18Which story featured the return of the Cybermen, culminating in Adric's death?
Earthshock
'Earthshock' marked the first appearance of the Cybermen in Doctor Who since 1975 and is famous for the shocking, unannounced death of Adric.
Q 19In 'Mawdryn Undead', which mysterious cosmic entity was attempting to manipulate Turlough?
The Black Guardian
The Black Guardian made a significant return in 'Mawdryn Undead', attempting to force Turlough to assassinate the Doctor in exchange for returning him home.
Q 20In which story does the Fifth Doctor, trying to get Tegan to Heathrow, land near a time-travelling Concorde?
Time-Flight
In 'Time-Flight', the Doctor's attempt to return Tegan to Heathrow was complicated by the Master's plot involving a time-displaced Concorde.