Originally from Llan Ffestiniog, Erin graduated from the University of Leeds after studying Theatre Design.
She has previously designed on productions including Y Tad, Chwalfa (Theatr Genedlaethol Cymru), Fidelio (Opra Cymru), Dilyn Fi, Dim Diolch, Swyn y Coed (Cwmni'r Fran Wen), Aberhenfelen (Bara Caws), BoHo (Theatr Clwyd a Hijinx), Nid Fi (Arad Goch), Gwydion (Cwmni Theatr Maldwyn), The Big Democracy Project (National Theatre Wales) A Good Clean Heart (The Other Room), Omnibus (Kate Lawrence Dance Company), The Beggar's Opera, Hansel and Gretel (Opera'r Ddraig), Optimism (Uncanny Theatre), The Crossing (Pointed Arrow Performances). Erin has also worked as Costume Supervisor on a number of productions including Tylwyth, Nyrsys, Nansi, Blodeuwedd (Theatr Genedlaethol Cymru), Dick Whittington, Beauty and the Beast (Wakefield Theatre Royal), and as Visual Artist on Saer y Ser, Fi di Fi and Llwybrau Llachar(Cwmni'r Fran Wen). She trained in the costume department of Opera North, touring nationally and internationally with productions including Madame Butterfly, Carousel, Ruddigore, Pinocchio and Carmen.