Allsop was born in the United Kingdom, and only a few months after her birth moved to the United States with her father, John Allsop and mother, Helen Allsop. Her father was a surgeon which is why they moved around a lot when Allsop was a young child.
She attended Strathcona Primary School and Melbourne Girls Grammar.
She began drama classes at age nine in Box Hill, and at thirteen she starred in the Wedgewood Pie commercial, where she wore a bright green bikini and was only one screen for a small segment. Allsop began studying an Arts Degree but dropped out. She was accepted into the Victoria College of the Arts in 1995 and she studied a visual and performing arts degree.
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 break through role.
She played the role until 2004 when she left to pursue further career options. Her character was killed off in a bombing, this 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 American Broadcasting Company"s MDA. In 2005, Allsop appeared in the children"s television show Holly"s Heroes for one episode as Abby Dawson.
Also during 2005, Allsop guest starred on Last Manitoba Standing. 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 has been cast in Matching Jack.
Allsop plays a character named Marianne. The movie premiered ay the 2010 Melbourne International Film Festival before going on wide release in August 2010.
Jane Allsop also had recurring roles in Rush and Tangle from 2010. She appeared in Underbelly Files: Tell Them Lucifer was Here and The Slap in 2011.
She had a supporting role in House Husbands and the mini series Devil"s Dust in 2012.
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.
