Sandro Rosta went from drama-school productions to a leading role in the Star Trek universe in a remarkably short time. In Star Trek: Starfleet Academy, he plays Caleb Mir, a young man whose reasons for joining the Academy are more personal than any ambition to wear a uniform.
For readers arriving from an Emmerdale search, there is an important clarification: no verified Emmerdale acting credit has been found for Sandro Rosta. His recognised television role is Caleb Mir, not a character in the Yorkshire soap. Here is what is known about his work and what comes next.
What role does Sandro Rosta play in Star Trek?
He plays Caleb Mir, one of the cadets at the centre of Star Trek: Starfleet Academy. The series follows a new class learning what it takes to become Starfleet officers, but Caleb Mir does not arrive with uncomplicated faith in the institution.
Caleb Mir has spent years separated from his mother, Anisha Mir. His search for her gives him a reason to accept a place at the Academy, even while he questions whether he belongs there. That tension makes him an accessible character for viewers who are new to Star Trek: he is discovering the Academy’s rules and relationships rather than taking them for granted.
The role also places Sandro Rosta opposite Holly Hunter, who plays Academy chancellor Nahla Ake. Nahla Ake’s connection to Caleb Mir’s past means their scenes carry more than a straightforward teacher-and-student dynamic. Trust has to be built; it is not something Caleb Mir offers automatically.
Why is Caleb Mir central to the story?
Star Trek: Starfleet Academy is about young people deciding who they want to become. Caleb Mir brings a pointed question to that premise: what happens when someone’s personal mission matters more to them than the organisation offering a new future?
His story begins with a search for family, but Academy life also places him among other cadets with their own backgrounds and expectations. Friendship, rivalry and loyalty become part of the decision he faces. Finding his mother and finding a place among the cadets are related goals, but they are not necessarily the same thing.
That gives Sandro Rosta room to play Caleb Mir as more than a rebellious newcomer. The character can be sceptical of Starfleet while still forming meaningful connections within it. The contrast is one of the reasons his journey works as an introduction to the series without requiring viewers to know decades of Star Trek history.
What has Sandro Rosta done outside the series?
Theatre is the clearest part of his career before his television breakthrough. His drama-school productions included both classical plays and newer work, while The Harmony Test marked his professional stage debut. A short film credit also predates Star Trek: Starfleet Academy.
It is worth keeping that timeline in perspective. Sandro Rosta is an emerging screen actor, not someone with a long television filmography that needs to be reconstructed from rumours. Star Trek: Starfleet Academy is the role that brought him to a much wider audience.
There is no reliable reason to fill the gaps with claims about an unannounced soap appearance, a confirmed future part or personal details he has not made public. His documented credits already explain why audiences began searching for his name in 2026.
Will Sandro Rosta return for season two?
A second season of Star Trek: Starfleet Academy was ordered, and production was completed. In March 2026, CBS Studios and Paramount+ said it would be the show’s second and final season, as reported in Variety’s account of the announcement.
That means viewers have more of the series to come, but they should not confuse an upcoming second season with a third-season renewal. As of 3 October 2026, a confirmed release date for the final season has not been established here.
The end of the series does not, of course, determine Sandro Rosta’s wider career. It means his first major television role has a defined run.
Is Sandro Rosta in Emmerdale?
There is no verified evidence that Sandro Rosta has appeared in Emmerdale. Cast lists and the actor’s documented credits point to Star Trek: Starfleet Academy and his earlier theatre work.

That distinction matters for a factual actor profile. A search term appearing near Emmerdale content does not establish a connection to the programme. Until a reliable casting announcement or screen credit says otherwise, describing Sandro Rosta as an Emmerdale actor would mislead readers.
Frequently asked questions
Who does Sandro Rosta play in Star Trek: Starfleet Academy?
Sandro Rosta plays Caleb Mir.
Was Star Trek: Starfleet Academy his first acting job?
No.
Is Sandro Rosta an Emmerdale actor?
No verified Emmerdale credit has been found for Sandro Rosta. He is best known on television for playing Caleb Mir.
Is Star Trek: Starfleet Academy getting a third season?
No. CBS Studios and Paramount+ said the upcoming second season would be the final one.