playing multiple roles in Love Loss & What I Wore at the Sydney Opera House alongside Magda Szubanski and Natalie Bassingthwaighte. Subsequently, she played the role of Susan in a one-woman comedy Just the Ticket for Ensemble Theatre, Sydney (March 2011). After a short break, Muggleton took over the role of Mrs Peachum in The Threepenny Opera alongside Paul Capsis for the Sydney Theatre Company, from 1 September 2011 to 24 September 2011, and then headed to Perth (WA), where she played the role of Mrs Johnstone in Blood Brothers, from 9 November 2011 to 4 December 2011 – a role that she had longed to play. In March 2012, Muggleton went to Queensland for a role in Fatal Honeymoon, a feature film based on the death of Alabama woman Tina Watson on her Great Barrier Reef diving trip in 2003, shot for the American cable channel Lifetime. In 2013, Muggleton starred in three different theatre productions. First she starred in a revival of Torch Song Trilogy for Gaiety Theatre Presents, from 6 February to 3 March at the Darlinghurst Theatre in Sydney. Following this, she took to the road for a six-month tour of The Book Club which visited Brisbane, Sydney, Melbourne, Adelaide, Perth and many regional areas. Midway through the tour she took a break to reprise her role in Blood Brothers at Brisbane's Cremorne Theatre, QPAC for two weeks in August. In 2014 she returned to the role of Ms Hannigan in Annie (Sydney) as well as performing the cabaret show The Men Who Got Away—Thank God! in Canberra. In 2015, Muggleton performed in Boston Marriage at QPAC in February and March and won the 2015 Norman Kessell Memorial Award for Best Actor (female) for her role in The Book Club at the Glug Awards in Sydney. Muggleton returned to the stage in 2016 to play Velma Von Tussle in Hairspray in Brisbane (April) and Newcastle (July) just before The Book Club returned to Melbourne's Southbank Theatre in July. Muggleton also added two TV credits to her name; she appeared in Episode 2 of Channel 7's The Secret Daughter and in December 2016, Muggleton made a brief appearance in the UK Channel 4 soap opera Hollyoaks as Dr. Barton which she filmed in October whilst she was in London performing The Book Club at The Kings Head Theatre. In 2017, Muggleton played the role of Helena Rubinstein