[4] When Mustafa was 5 years old, the family relocated from Portland to Mission Viejo, California, and his father opened a limousine service in Laguna Hills.

[2] He played during the 1997 Rose Bowl between the then-undefeated Sun Devils (led by Mustafa's friend Jake Plummer)[6] and the Ohio State Buckeyes.

[2] After a season on the Oakland Raiders and Cleveland Browns' practice squads in 1999, Mustafa attended the Seattle Seahawks' training camp in 2000.

[8][9] After the Seahawks, Mustafa pursued an acting career, playing small roles on various television series, including Ugly Betty and Days of Our Lives.

[13] The following year, he guest-starred in two episodes of The CW's spy drama series Nikita, playing the role of Cyrus, a former agent for Division and a member of the "Dirty Thirty".

[15] The following year, he starred in the pilot episode of the USA Network comedy series Sirens as a police officer named Danny.

[17] In 2019, Mustafa played the adult Mike Hanlon (Chosen Jacobs in his younger version) in It Chapter Two, the sequel to the 2017 horror film It.

Subsequently, a three-day session created a series of humorous, personalized YouTube videos, with Mustafa reprising the character from the original Old Spice commercial.