He acted in the Lifetime original movie Unanswered Prayers based on the song by Garth Brooks. He appeared in both seasons of the Disney Channel short series As the Bell Rings as Danny. As The Bell Rings features three original songs recorded by Oller. His first song/music video "Could You Be The One" premiered August 2, 2008 on the Disney Channel followed by "Here I Go" and "All You Gotta Do". He also appeared on Savannah Outen's music video for her single, "If You Only Knew". He also appeared in the Teen Nick series Gigantic as Walt Moore. This is where he met Malcolm Kelley, one half of the pop-duo MKTO. He appeared in the 2012 horror film Beneath the Darkness and the 2013 thriller film The Purge.