Catherine Glavicic joins the sensational cast as a series regular in the role of May Seckold - a street smart, petty thief who is employed as one of Kate Leigh's loyal girls.

It’s 1927. Tilly Devine and Kate Leigh are the undisputed crime queens of Sydney. Tilly, who was born into poverty in London and became a prostitute at 15, runs the biggest brothel network Australia has ever seen. Her husband, “Big Jim” Devine, leads a team of hired muscle to protect their lucrative business.

Tilly’s rival is sly-grog proprietor, Kate Leigh, who capitalised on the law that forced pubs to cease trading at 6pm, opening numerous saloons to provide liquor to punters after hours. When Tilly steals Kate’s pomeranian dog, the women become sworn enemies. Detective Inspector Bill Mackay polices Darlinghurst with Detective Sergeant Tom Wickham for brawn.

Watch full episodes here: http://channelnine.ninemsn.com.au/videos/underbelly/

Congrats Cath!