At 33 years old, Jon Rudnitsky has this physical status:
Rudnitsky performed with the Groundlings. On August 31, 2015, it was announced that Rudnitsky would join the cast of Saturday Night Live as a featured player for the show's forty-first season. In the third episode of that season, Rudnitsky portrayed Anderson Cooper in a sketch, acting as moderator for a Democratic presidential debate, for which he received criticism from Cooper. He has also done impressions of Wolf Blitzer, John Mayer, Martin Scorsese, Tom Cruise, and Vladimir Putin (in a dress rehearsal sketch on the season 41 episode hosted by Donald Trump), while also doing a Dirty Dancing sketch for Weekend Update, which was seen as one of his high points for the season. On August 9, 2016, it was reported that Rudnitsky would not be returning to the show for the following season.
In 2017, Rudnitsky starred alongside Reese Witherspoon in the romantic comedy film Home Again. In 2018, Jon played Mike in the Netflix release Set It Up.
He starred alongside Jane Lynch and Genevieve Angelson in the NBC pilot Relatively Happy, which was not picked up.
In March 2020, Rudnitsky was cast as Mike Devries in the musical comedy-drama television series The Big Leap, which premiered on Fox on September 20, 2021.