Siobhan starred in all 6 seasons of the TV drama series Outrageous Fortune and has also featured on TV in The Almighty Johnsons, Shortland Street, The Blue Rose and Dancing with the Stars. She has been nominated for three best supporting actress awards and one best actress award. At the NZ Writers Guild Awards in 2015, Siobhan won Best Unproduced Feature Film for her screenplay which she co-wrote, Bara, and a NZ Writer’s Guild SEED grant to develop the project further. In 2018, she co-wrote The Lonely Hearts Motel as part of TV3’s Comedy Pilot Week and wrote, voiced, produced and animated the animated sperm series, Slow Pete, for TVNZ on Demand. In 2019, Siobhan co-wrote Darryl. a Beach to Snow Story for TVNZ on Demand.