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