Bhain Siobhán a cuid cáilíochtaí aisteoireachta amach ón Guildhall School of Music and Drama in 2007.
I measc na ndrámaí atá déanta aici, tá :
- Medea- Medea
- Jason and the Argonauts- Medea (Scoop Theatre)
- Sweet Meat- Marie (Union Theatre)
- A Mid Summer Nights Dream- Hermia (Verbier Festival)
- Black Comedy- Carol (The Bridewell Theatre)
- The Tempest- Miranda (The Swan)
- The Workshop- Helen (The Bridewell Theatre)
I measc na gclár teilifíse atá déanta aici, tá:
- Na Cloigne
- Inspector George Gently
- Mutual Friends
- PaddyWhackery
- Seacht
- Fair City
- Ros na Rún
I measc na scannán atá déanta aici, tá:
- The Daisy Chain
- Starfish
- Eireville
- Tom Waits Made Me Cry