Sigga played the part of Ms.Corry in Reykjavik City Theatre's production of Mary Poppins. She was also a castmember in the Musical Productions of Les Misérables (National Theatre) and Jesus Christ Superstar (Reykjavik City Theatre).
Sigga is ona half of the duo Viggo & Violetta - the King and Queen of Musical Theatre in Iceland (self claimed) She co-wrote and acted in a musical based on their life: The Self-Help Musical which was co-produced by the National Theatre.
Sigga was two fairy tale princesses in the Icelandic Broadcast Company's acclaimed TV-program for kids for one season.
Sigga used to live in Toronto, Canada where she was once a guest star on Global TV's Train 48 as well as doing some theatre work.