Samantha (played by Najarra Townsend) is a protagonist in Contracted.
Young woman infected by a mysterious disease after assault, fights for survival across both films. Nikki (played by Katie Stegeman) appears in Contracted.
Phase I character, likely a victim or close contact in the initial infection chain. Alice (played by Alice Macdonald) appears in Contracted.
Phase I character, possibly a friend or witness to Samantha's condition. Riley (played by Matt Mercer) appears in Contracted.
Last contact with Samantha, leads outbreak investigation in Phase II to save the world. Doctor (played by Ruben Pla) appears in Contracted.
Medical professional treating infected individuals across both films.