In the early scene of Ferghus gifting Íonait her birthday present, the voice as heard on the kitchen radio is director Ciarán Hickey (as a news reporter) detailing the aftermath of the events in his earlier short film "The Boy Murder" (2015) - also produced by Finbarr Crotty.
In the later pub scenes, the bar boy glimpsed working with Claire J. Loy's character of 'Luisa' is played by producer Finbarr Crotty.