Remember, Belichick has been friends with Trump for years and famously wrote him a letter back in 2016 congratulating him on a "tremendous campaign."
Gulbis and Walker have both appeared on "Celebrity Apprentice" with Trump.
The point of the council is to help find ways to motivate kids to be more active.
Belichick spoke about the new position, saying "The Council's mission aligns with my beliefs and several of the Bill Belichick Foundation's goals and values as they relate to sports, youth athletics and personal health and wellness."
"The physical fitness of children in our country is an apolitical issue that is extremely important to our future. When I was contacted by Ivanka Trump and asked to participate, I was humbled to be asked and honored to accept, as I would have done for any administration."
"I know that a lot of great leaders have participated on the Council over the past half century, some who are personal inspirations to me, and I am eager to lend any assistance I can to its ongoing mission."