In the January 2021 episode of the 'Cold Ones' podcast, Apollonov stated his family arrived in Australia from Siberia.

He fought against Robert James Rallison ( TheOdd1sOut) and won. In May 2022, Apollonov participated in the Creator Clash event set up by fellow YouTuber Ian Carter ( iDubbbz) alongside many other YouTube personalities. Apollonov also has an active X (Twitter) following of 215,900 followers. Many of Apollonov's videos also star fellow comedian Aleksa Vulović, as the two are very close friends and often work on their individual projects with help from one another. His content is often uploaded by the comedy group The Chaser, and has collaborated with other internet celebrities and YouTubers including Boyinaband, maxmoefoe, William Osman, IDubbbz, Hasan Piker, and the comedy group Aunty Donna.

Many of Apollonov's projects have gained widespread media attention in Australia, including his trip to North Korea to get a haircut, his successful attempt to enter Star casino in Sydney with overt COVID-19 symptoms, and for recreating the Utah monolith in Australia. Other projects have included building a laser guided drone that drops steel darts creating a hammer that uses blank rounds to drive nails, and strapping a submachine gun to a robot dog. Much of his content involves using his engineering and fabrication skills to design and build a variety of projects, including recreating the Utah monolith in Australia, simulating the Aurora Borealis in his kitchen with a high voltage transformer to parody The Simpsons, and making a scaled-up chainsaw powered Beyblade with a giant circular blade that is spun by a chainsaw motor. He is also the co-star of Boy Boy which he created with fellow comedian Aleksa Vulović who also stars in his videos. Alex Apollonov is an Australian YouTube personality and comedian, better known for his online presence as I Did a Thing, and his YouTube channel of the same name.

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