Whilst studying, Allsop guest starred on television series such as
Neighbours (1995),
Blue Heelers (1997) and
Halifax f.p. (1998). After graduating in 1998, Allsop returned to
Neighbours as a different character for several months. In 1999 Allsop landed her breakthrough role. She auditioned for
Blue Heelers and won the lead role of Constable
Jo Parrish. Over the next 5 years, she would become one of
Blue Heelers all-time most popular characters, winning a
Logie Award for the Most Popular New Female Talent in 2000, and receiving a nomination for a
Silver Logie for Most Popular Actress in 2005. She played the role until 2004, after which time she left to pursue further career options. Her character was killed off in a bombing, which was used as part of a major revamp of the show. After Blue Heelers, the next notable role for Allsop was a guest role in the
ABC's
MDA. Allsop played Lucy Morello, partner of Andrew Morello who have decided to use IVF to become pregnant. In 2005, Allsop appeared in the children's TV show ''
Holly's Heroes for one episode as Abby Dawson. Also during 2005, Allsop guest starred on Last Man Standing''. In one of the first roles after the birth of her first son, Indiana, Allsop portrayed TV actress and comedian
Noeline Brown in the 2007
tele-movie,
The King: The Story of Graham Kennedy. During the same year, Allsop guest starred on
Neighbours as
Diana Murray, a barrister working with
Toadfish Rebecchi (
Ryan Moloney) and
Rosetta Cammeniti (
Natalie Saleeba) on a legal case. Allsop appeared in ten episodes. Allsop was then cast in 2010 drama feature
Matching Jack, alongside
Jacinda Barrett, playing the role of Marianne. The movie premiered at the 2010
Melbourne International Film Festival before going on to wider release in August 2010. Allsop also had recurring roles in
Rush and
Tangle from 2010. She appeared in
Underbelly Files: Tell Them Lucifer was Here and drama miniseries
The Slap in 2011. She had a supporting role in
House Husbands and the miniseries ''
Devil's Dust in 2012. She then joined House Husbands'' as a main cast member. Allsop played Felicity in two seasons of the ABC series
Rake. In 2018 she was in
Underbelly Files: Chopper and
True Story with Hamish & Andy. ==Personal life==