Born into a musical family (Wendler's father, Prof. Dr. Anton Wendler, worked as a tenor and assistant director at the Vienna State Opera while his mother had a brief career as an operatic soprano before switching careers to work for the United Nations),[1] Wendler attended the Vienna Choir Boys from 1985 until 1989, participating in four tours around the globe, singing in more than 500 concerts and opera performances, sharing stages with José Carreras, Agnes Baltsa, and Alfredo Kraus, and working with conductors such as Colin Davis and Horst Stein.

Wendler's interest in film music started at around the age of 10, and by the time he graduated from high school, his collection of soundtrack CD's exceeded 1500.

The resulting piece, Consolatio, for choir and symphony orchestra, received its premiere at St. Joseph's Church, Ottawa, and was subsequently broadcast on local Canadian television stations.

Collaborators on this project: London Metropolitan Orchestra, recording engineer Mike Ross-Trevor, and scoring mixer Dennis S. Sands.

[4] Also in 2004, film composer Paul Haslinger asked Wendler to join his team as an arranger, orchestrator, and music programmer, resulting in work on the movies Into the Blue, Turistas, The Fifth Commandment, and Gardener of Eden, as well as the second season of the Showtime series, Sleeper Cell.

In 2007, Wendler was hired to score the internet series, The Interior (soundtrack released by Perseverance Records as an online exclusive album), and in late 2008 / early 2009, he wrote the music for the U.S. version of the film, Broken Angel.