The Institute (TV) Cast
The cast of The Institute. Updated on August 10, 2025.
15 actors
Ben Barnes
as Tim Jamieson (8 episodes)

Ben Barnes plays Tim Jamieson, a key character in the series.

Mary-Louise Parker
as Ms. Sigsby (8 episodes)

Mary-Louise Parker takes on the role of Ms. Sigsby, an important figure at the institute.

Simone Miller
as Kalisha (8 episodes)

Simone Miller portrays Kalisha, one of the children with special abilities.

Jason Díaz
as Tony (8 episodes)

Jason Díaz plays Tony, contributing to the unfolding story at the institute.

Joe Freeman
as (8 episodes)

Joe Freeman is featured in a central role within the series.

Fionn Laird
as (8 episodes)
Hannah Galway
as (8 episodes)
Julian Richings
as (8 episodes)
Robert Joy
as (8 episodes)
Viggo Hanvelt
as (8 episodes)
Arlen So
as (8 episodes)
Birva Pandya
as (8 episodes)
Dan Beirne
as (8 episodes)
Martin Roach
as (8 episodes)
Jane Luk
as (8 episodes)
For the best insights and data about the TV show The Institute, visit our main The Institute page.