Biografie
Brummer was born in Sydney, New South Wales, and was of German descent. He began his career starring as Shane Parrish in the television soap opera Home and Away. Brummer was nominated for the Gold Logie and Silver Logie Awards for "Most Popular Actor" for the role of Shane Parrish in 1994, but failed to win. However, he went on to win the "Most Popular Actor" silver Logie Award in 1995 and 1996. In 1993, 1994, and 1995 the role saw Brummer voted as "The Prince of Soap" by Dolly magazine's readers. He was written out by way of his character dying from blood poisoning.
Brummer went on to appear in the hospital drama Medivac, the pay-TV series Shark Bay and had a guest role in The Man from Snowy River in 1996. He also appeared in the 1999 film Tom's Funeral and in The Finder (2001). He had a recurring role in the short-lived soap opera Crash Palace (2001) on FOX8 (Sky One in the UK).
In 2005 he took part in the reality television series Celebrity Circus. His mother told Sydney-based radio station 2Day FM in 2007 that he was working as a window-cleaner between acting roles. The station tried to get an interview with him for a "where are they now?" segment, but was unsuccessful.
In 2009, Brummer joined the cast of Underbelly, during the second series in Underbelly: A Tale of Two Cities in the minor role of Trevor Haken, a corrupt member of the New South Wales Police Force. In the third series, Underbelly: The Golden Mile, this role was increased to one of the principal cast. In 2011, Brummer joined the cast of Neighbours for seven weeks as Troy Miller. On 2 March 2012, it was announced that Brummer had reprised his role as Troy for another guest stint. In 2014 he joined the cast of Winners & Losers for 5 episodes as Jason Ross.