Dorothy "Dot" Everest is an EMT and the sister of Arthur Everest.
Dot is Arthur's sister. After losing their father at an early age during the Terror's massacre of Flag 5, Dot looked out for her brother's welfare. As an adult, she trained to be an EMT and worked in The City. Throughout season 1 Dot evolve's from Arthur's skeptical and cautious supporter to a gun toting, information gathering Terror gang infiltrating member of team Tick. A shared and quirky love interest between Dot and Overkill also develops throughout the waning episodes of season 1.
Dot is a caring individual who looks out for her brother.