Jamal and his father were the ones responsible for letting Ghostwriter out of the book he was preserved in. It happened while they were bringing an old trunk, which belonged to Jamal's great grandfather Ezra, upstairs from the basement. That trunk would be used to carry Jamal's sister Danitra's belongings to college.
Reggie was first portrayed by special guest star Samuel L. Jackson in the first two stories and was later portrayed by Dean Irby the rest of the series. The character's last major appearance was in A Crime of Two Cities.