Uncapped Sunderland defender George McCartney has been called up to the senior squad again having been drafted in from the Under-21s at the last minute for the game with Bulgaria last June.
Ipswich Town midfielder Jim Magilton also makes a welcome return to the fold having recovered from injury.
The Irish travel to Copenhagen to take on Denmark on September 1 and entertain Iceland at Windsor Park four days later.
Full squad:
R Carroll (Manchester Utd), M Taylor (Fulham), A Hughes (Newcastle), M Williams (Wimbledon), C Murdock (Preston), D Griffin (Dundee Utd), I Nolan (Wigan), P Kennedy (Wigan), G McCartney (Sunderland), N Lennon (Celtic), D Johnson (Blackburn), K Gillespie (Blackburn), M Hughes (Wimbledon), P Mulryne (Norwich), J Magilton (Ipswich), D Healy (Preston), S Elliott (Motherwell), G Ferguson (Linfield), P McVeigh (Norwich), A Kirk (Hearts), J Quinn (West Brom).
