시즌 정규 출연진 8

1. 

   안나 토브

   Olivia Dunham

2. 

   조슈아 잭슨

   Peter Bishop

3. 

   John Noble

   Walter Bishop

4. 

   랜스 레딕

   Phillip Broyles

5. 

   Blair Brown

   Nina Sharp

6. 

   Jasika Nicole

   Astrid Farnsworth

7. 

   Kirk Acevedo

   Charlie Francis

8. 

   Michael Cerveris

   The Observer / September

특별출연 10

1. 

   Chris Eigeman

   David Esterbrook

2. 

   Marjan Neshat

   Claire Williams

3. 

   Lisa Emery

   Paula Kramer

4. 

   Alok Tewari

   Dr. Nadim Patel

5. 

   Maria Dizzia

   Emily Kramer

6. 

   William Hill

   Officer Marty Pitts

7. Robert Eli

   Ken Williams

8. 

   Scott Evans

   Ben

9. 

   José Ramón Rosario

   Gary

10. 

    Jane Kim

    Elizabeth

제작진 3