Kenny will join Alden Ehrenreich, Emilia Clarke, Woody Harrelson, Donald Glover and Joonas Suotamo in the movie, reported Variety.
However, his role in the film has not yet been announced.
Kenny is best known for his performance in musical coming-of-age comedy drama "Sing Street", which was nominated for Golden Globe for Best Motion Picture-Musical or Comedy. He also appeared on Irish TV series "Fair City".
Han Solo movie is scheduled to release in the US on May 25 next year.