Constance Clarke

Constance Clarke was a companion of the Sixth Doctor. She was a WREN during World War II. (AUDIO: The End of the Line)

She worked at Bletchley Park. She met the Doctor when she chastised him for overworking Sylvia Wimpole. When Major Harris came to investigate information on the Sixth Doctor, she asked him about her husband Henry whether he was still alive. She accompanied the Doctor to Cambridge. She asked Robbie Flint about her husband. She had a first in Modern Languages from the University of Oxford. She forced the Doctor to take her with him. She wanted to be taken back to her duties once she decided to finish travelling. (AUDIO: Criss-Cross)

She went through the Doctor's email in-box and found an email for The Rani's parole hearing. She visited Teccaurora Penitentiary when the Rani kidnapped her. She was born in Africa and told Raj Kahnu about it. He asked her why she travelled with the Doctor and then tried to have her placed in one of his suits of armour. (AUDIO: Planet of the Rani)

On one travel with the Doctor, she visited the Parallel Sect where she helped to control the situation. Here she encountered The Valeyard and. (AUDIO: The End of the Line)

Personality
Constance was married. When the Doctor introduced her to others as "Constance," she was quick to correct the Doctor to a more formal "Mrs. Clarke." (AUDIO: The End of the Line)

Behind the scenes
Constance first appeared in The End of the Line as an existing companion of the Sixth Doctor. Due to the release date of The Sixth Doctor: The Last Adventure being changed from September 2015 to August 2015, The End of the Line was released before the character's introductory story.