Brennan Donnelly

Brennan Donnelly was born on November 3, 2002, in Maryland to Mike and Jill Donnelly. Katie is two years younger than him. He also has a younger brother, Ryan, who is four years younger. The family is of Irish descent.

Brennan is a gifted athlete, as are his siblings. When it came to choosing the sports he wanted to excel in, he picked water polo and swimming. Katie and Ryan, on the other hand, selected gymnastics and golf, respectively. Ryan also plays baseball.

Over the years, Brennan has been a part of several winning teams as a water polo player. Not only was he a member of the team that competed in the ODP National Tournament, he was also a member of the US teams that participated in the Junior Olympics and in an international competition in Canada. He was later selected to be a part of the National Junior Honor Society.

Brennan Donnelly and his family have a YouTube channel called ‘It's The Donnellys.’ It is essentially about the lives of the Donnelly kids. Their parents set up the channel on May 8, 2015, and published their first video a day later. Brennan’s first appearance on the channel was in the video titled ‘Family Obstacle Course Challenge’, posted on May 30, 2015. Through his inherent athleticism and natural charm, he won over the audience as the channel grew over the course of the next few years. As of March 2018, it has accumulated over 225 million views and 893 thousand subscribers.

Eventually, Brennan decided to create an Instagram account for himself in August 2015. He uploaded his first picture on August 8, 2015. As the Donnelly family channel grew, so did his Instagram account.