Early on in his career, Atae starred in television and film projects including the live-action adaptations of Psychic Detective Yakumo, Delicious Gakuin, Teiō, Guardian Angel, and Ramune.
[3] In 2006, he also began making acting appearances on television, with his debut role in Karera no Umi VIII: Sentimental Journey, which starred other AAA members.
[1][5] In 2010, he starred in the film Ramune and also recorded the theme song, "Kimi ga Ireba", as a featured artist with Hiroki Maekawa, which was later released as a digital single.
[9] He was featured in a dating sim visual novel game titled AAA Shinjiro Atae Love Trip, which was released on October 24, 2014.
[27] In November 2020, Atae announced through his official website and social media that he was putting his entertainment career on hold following AAA's hiatus in 2021.
[31][32] Atae also announced he is working on a documentary about his life and journey, which will be produced by Academy Award winners Peter Farrelly and Fisher Stevens.
Details about the upcoming project are still being kept under wraps, but a press release did confirm direction will be at the hands of creative duo Carlie Mantilla-Jordan and John Eliot Jordan, who are long-time friends of Atae.