Doctor Tasaki was a scientist significantly involved in the Warp Five program, along with Doctors Zefram Cochrane and Henry Archer.

In 2119, when Jonathan Archer was about eight years old, his father, Henry, gave him a tour of the Warp Five facility near Bozeman, Montana. Archer was introduced to many of the individuals his father worked with, including Tasaki. (ENT: "Singularity")