Walker was born in Elizabeth, New Jersey in 1995.
He attended Temple University, where he played quarterback for the Temple Owls from 2013 to 2016.
After college, Walker was signed by the Indianapolis Colts to play on their practice team.
He played with the Colts for almost two years before joining the Houston Roughnecks for their inaugural season.
In the first Roughnecks game against the Los Angeles Wildcats, Walker tossed four touchdowns and was named the league's first-ever Star of the Week.
Walker told ABC13 he loves his new home in Texas because the food is great and the people are kind.
"Just to come here and be in a football state...a state that lives and dies football, that's something I love, something I'm proud to be a part of," Walker said.
Watch the video above to learn more about Walker!
Houston officially lands inaugural XFL Championship Game
This Roughnecks star's moving interview made him a top trend
Meet the the Roughnecks' prankster, Banda-loving kicker