- 50 Cent (2 movies)
- Aaron Blake O'Connell (1 movie)
- Aaron Cohen (1 movie)
- Aaron Gwin (1 movie)
- Aaron Hughes (1 movie)
- Aaron Monaghan (2 movies)
- Aaron Pullins IV (1 movie)
- Aaron Taylor-Johnson (1 movie)
- Abigail Iversen (1 movie)
- Adam (1 movie)
- Adam Best (1 movie)
- Adam Blackwood (1 movie)
- Adam Chanler-Berat (1 movie)
- Adam Clayton (3 movies)
- Adam Driver (2 movies)
- Adam Faith (1 movie)
- Adam Fergus (2 movies)
- Adam Fogerty (1 movie)
- Adam Goldberg (1 movie)
- Adam Hurtig (1 movie)
- Adam Johnson (1 movie)
- Adam Scott (1 movie)
- Adele McCann (1 movie)
- Adewale Akinnuoye-Agbaje (1 movie)
- Adrian Dunbar (6 movies)
- Adrian Hudson (1 movie)
- Adrian Pasdar (1 movie)
- Adriana Randall (1 movie)
- Adrien Benn (1 movie)
- Adrienne Corri (1 movie)
- Aedin Moloney (1 movie)
- Afshan Azad (1 movie)
- Agam Darshi (1 movie)
- Aggeliki Papoulia (1 movie)
- Agnes Nuissl (1 movie)
- Agostina Belli (1 movie)
- Aidan Campbell (1 movie)
- Aidan Gillen (7 movies)
- Aidan Kelly (1 movie)
- Aidan McArdle (1 movie)
- Aidan Quinn (9 movies)
- Aidan Turner (1 movie)
- Aideen O'Donnell (1 movie)
- Aiden Condron (1 movie)
- Aiden Gillen (1 movie)
- Aileen Henry (1 movie)
- Ailish McCarthy (1 movie)
- Aine Ni Mhuiri (1 movie)
- Aislín McGuckin (1 movie)
- Aisling Corcoran (1 movie)
