| cast |
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| Series Regulars | |||
| |||
| Joshua Jackson | Joshua Jackson as Peter Bishop | John Noble | John Noble as Dr. Walter Bishop |
| Jasika Nicole | Jasika Nicole as Astrid Farnsworth | Anna Torv | Anna Torv as Olivia Dunham |
| Blair Brown | Blair Brown as Nina Sharp | Lance Reddick | Lance Reddick as Phillip Broyles |
| Kirk Acevedo | Kirk Acevedo as Charlie Francis | Mark Valley | Mark Valley as John Scott |
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| Recurring & Guests | |||
| |||
| Seth Gabel | Seth Gabel as Alternate Lincoln Lee | Leonard Nimoy | Leonard Nimoy as Dr. William Bell |
| Ari Graynor | Ari Graynor as Rachel | Jared Harris | Jared Harris as David Robert Jones |
| Sebastian Roché | Sebastian Roché as Thomas Jerome Newton | Kevin Corrigan | Kevin Corrigan as Sam Weiss |
| Jarod Joseph | Jarod Joseph as FBI Agent Tim | Michael Gaston | Michael Gaston as Sanford Harris |
| Philip Winchester | Philip Winchester as Frank Stanton | Georgina Haig | Georgina Haig as Etta |