# Sandro Rosta
**Sandro Rosta** is an actor who plays the lead role of Caleb Mir in the [Paramount+](https://www.edgepedia.org/paramount) series *Star Trek: Starfleet Academy*, which premiered in January 2026 as the show's first professional screen role for him.[1](https://www.imdb.com/name/nm11842211/) • [2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy)
| Key fact | Detail |
|---|---|
| Breakthrough role | Caleb Mir in *Star Trek: Starfleet Academy* (2026), 10 episodes[1](https://www.imdb.com/name/nm11842211/) |
| Production | Paramount+ / Amblin Television, dir. Alex Kurtzman[3](https://www.independenttalent.com/actors/sandro-rosta/) |
| First screen role | He had never acted professionally on screen before the series; he was 26 years old when the role was cast[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy) |
| Earlier credit | Short film *Snitches Get Stitches* (2021), as Punch[1](https://www.imdb.com/name/nm11842211/) |
| Theatre | *The Harmony Test* (Hampstead Theatre, 2024); *The Watsons*, *Romeo & Juliet*, and *The Cherry Orchard* at the Oxford School of Drama (2022–2024)[3](https://www.independenttalent.com/actors/sandro-rosta/) |
| Training | Royal Conservatoire of Scotland junior conservatoires (2014); Young People's Theatre, Toronto (2015)[4](https://www.backstage.com/u/sandro-rosta/) |
| Height | 1.88 m (6 ft 2 in)[1](https://www.imdb.com/name/nm11842211/) |
## Casting as Caleb Mir
Rosta was cast about two weeks before shooting began, after a selection process in which the showrunners saw over 400 actors for the role.[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy) To win the part he did a chemistry read over Zoom with [Holly Hunter](https://www.edgepedia.org/holly-hunter), the Oscar-winning star of *The Piano*, who was already set to play [Nahla Ake](https://www.edgepedia.org/nahla-ake), the chancellor of the academy Caleb attends. Co-showrunner Noga Landau said the team looked for an actor who seemed to have actually been in a fight, because Caleb has been fighting his whole life simply to survive; Kurtzman, who directs and leads the series, relayed that criterion to Rosta after the audition.[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy)
The character is an angsty young man whom Nahla recruits for her program; in the series, set in the 32nd century, Nahla had earlier sent Caleb's mother, played by [Tatiana Maslany](https://www.edgepedia.org/tatiana-maslany), to a rehabilitation camp, and she offers Caleb an education and the possibility of finding her again.[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy) Rosta described the first table read as the most pressure he had ever felt, calling it a make-or-break moment with Hunter and the producers.[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy) In a later interview he credited Hunter with dissolving his intimidation on set, saying she treated him as a collaborator and a fellow artist.[5](https://www.cinemablend.com/interviews/star-trek-starfleet-academy-sandro-rosta-shares-how-holly-hunter-dissolved-intimidation-of-first-acting-job)
## Background and training
Throughout his youth Rosta moved between Canada and the United Kingdom.[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy) He trained at the [Royal Conservatoire of Scotland](https://www.edgepedia.org/royal-conservatoire-of-scotland)'s junior conservatoires in 2014 and at Young People's Theatre in Toronto in 2015, and also lists LB Acting Studio in Toronto among his training.[4](https://www.backstage.com/u/sandro-rosta/) His stage work listed by his agency, Independent Talent Group, includes *The Cherry Orchard* (2022), *Romeo & Juliet* (2023), and *The Watsons* (2024) at the Oxford School of Drama, and *The Harmony Test* (2024) at Hampstead Theatre.[3](https://www.independenttalent.com/actors/sandro-rosta/)
His screen credits besides *Starfleet Academy* are limited: a short film, *Snitches Get Stitches* (2021), in which he played Punch, and self-appearance credits including *First Year* (2026).[1](https://www.imdb.com/name/nm11842211/) He described himself in interviews as a fan of science fiction films but said he had little background in the *Star Trek* franchise before signing on, and he has said he was more of a *Star Wars* viewer.[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy)
## Reception and the series' course
*Star Trek: Starfleet Academy* was one of the lead projects unveiled for the franchise's 60th anniversary and began streaming in January 2026, with two episodes at launch followed by weekly releases.[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy) A second season was ordered and went into production with Rosta and the young ensemble cast.[2](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy) In March 2026 the German listings site fernsehserien.de reported that Paramount+ had canceled the series after its first season, citing weak viewer interest.[6](https://www.fernsehserien.de/sandro-rosta/filmografie)
## References
1. [Sandro Rosta, IMDb](https://www.imdb.com/name/nm11842211/)
2. [How an Oscar winner and a newcomer became the fresh faces of 'Star Trek', Los Angeles Times, 14 January 2026](https://www.latimes.com/entertainment-arts/tv/story/2026-01-14/holly-hunter-sandro-rosta-star-trek-starfleet-academy)
3. [Sandro Rosta, Independent Talent Group](https://www.independenttalent.com/actors/sandro-rosta/)
4. [Sandro Rosta, Backstage profile](https://www.backstage.com/u/sandro-rosta/)
5. [Star Trek: Starfleet Academy Star Shares How Holly Hunter 'Dissolved' The Intimidation Of His First Acting Job, CinemaBlend](https://www.cinemablend.com/interviews/star-trek-starfleet-academy-sandro-rosta-shares-how-holly-hunter-dissolved-intimidation-of-first-acting-job)
6. [Filmografie Sandro Rosta, fernsehserien.de](https://www.fernsehserien.de/sandro-rosta/filmografie)
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*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Screen people and creators › Screen actors of the Anglosphere and Europe › Canadian actors › Surnames R to S*
*Initially written Sep 17, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 15, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
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License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license