Ryan (19) plays teenage supermarket manager Sean Cassidy in the Dublin soap.
But he has a much darker role in a new short movie that is described as a cross between Love/Hate and a zombie movie.
Ryan plays the son of an inner city gangster in the movie Prodigal Son who returns from the dead in the horror film.
It focuses around a shadowy US medical company, Prodigal Inc., who bring the mobster's son back from the dead, to the horror of his devoted mother, and without reckoning on the son's enigmatic killer returning to finish the job.
His mother instantly recognises that her son is no longer himself.
Once a brutal enforcer, he's now a lost boy, afraid of his own shadow.
The film has been selected to tour 12 international festivals
It has been nominated for the Deadline Award to be presented at the upcoming 14th Landshuter Kurz Film Festival in Munich.
Deadline is a German film magazine and the award is for an outstanding Horror, Mystery, Fantasy or Thriller Short Film.
Prodigal Son was also selected for Berlin's prestigious British Shorts Film Festival, which this year has been expanded to include Irish entries.
The flick was shot over four days in ten locations across the capital and was written and directed by Dublin playwright CJ Scuffins.
Producer Eilis Mernagh funded the film by raising several thousand euros via film loving contacts on Facebook.
Ryan's first foray into film was alongside Amy Huberman in The Clinic where he played Ian Smith for three seasons of the show.
And he appeared in last year's Christmas panto alongside Jedward after building up a CV on the panto circuit for over seven years.
The Dubliner, who trained in London for six months in musical theatre, recently praised his employers at Montrose as being very obliging when it comes to taking on work outside of RTE, which allows him to bring in some extra cash.
"I could never take Fair City as a full-time job, it's more like a very busy part-time thing.
"But I don't have many expenses aside from petrol money. I live at home and I'm a big saver, so I'm not as badly off as others," he said.