There’s juicy news: after seeing her in A Town Called Bastard I can confirm that Joe’s aunt is played by Virginia Garcia Moreno, better known and often credited as La Sansona del Siglo XX (Female Samson of the 20th century)!!! 
https://www.dailymotion.com/video/x22lyhh_la-sansona-del-siglo-xx-extranos-en-la-noche_shortfilms
https://lamuy.es/virginia-garcia-moreno-la-sansona-sevilla/
