Alternate reality
Jae was an alien male who, in the alternate reality, was serving in the operations division aboard the USS Enterprise shortly before that starship was destroyed in 2263. (Star Trek Beyond)
Jae was played by actor Christian Sloan. This character was only named in the source's end credits.
Not visible on screen, Jae features a cybernetic augmentation on the back of his head like Joseph Gatt's character 0718 in Star Trek Into Darkness. The makeup application process initially took six hours but was eventually whittled down to five hours. [1]