Season 1
- Deborah Ayorinde as Livia "Lucky" Emory
- Ashley Thomas as Henry Emory
- Shahadi Wright Joseph as Ruby Lee Emory
- Alison Pill as Betty Wendell
- Ryan Kwanten ( True Blood ) as George Bell
- Melody Hurd as Gracie Emory
- Percy Hynes White as Davis
- Javier Botet as creature
Them (2021) [Season 1, Episode 1]
Day 1
Shown 9th April 2021
Them (2021) [Season 1, Episode 2]
Day 3
Shown 9th April 2021
Them (2021) [Season 1, Episode 3]
Day 4
Shown 9th April 2021
Them (2021) [Season 1, Episode 4]
Day 6
Shown 9th April 2021
Them (2021) [Season 1, Episode 5]
Covenant I.
Shown 9th April 2021
Them (2021) [Season 1, Episode 6]
Day 7: Morning
Shown 9th April 2021
Them (2021) [Season 1, Episode 7]
Day 7: Night
Shown 9th April 2021
Them (2021) [Season 1, Episode 8]
Day 9
Shown 9th April 2021
Them (2021) [Season 1, Episode 9]
Covenant II.
Shown 9th April 2021
Them (2021) [Season 1, Episode 10]
Day 10
Shown 9th April 2021
