Memory Beta lists various security chiefs from the novel continuity. The only recurring character is one Ingrit Thomson, an unlikely match for the man (?) in red seen here... I don't recognize the two chiefs whose entries remain to be written, Cruz or Kinitz.
In "Mirror, Mirror" Marla makes a reference to an unseen "Commander Kenno".
Admittedly, it's the mirror universe but apparently all the regulars are there, too, so "Commander Kenno" might be the redshirt seen in "The Enterprise Incident" briefing room scene.
The command division officer seems to be of hispanic origin, thus I'd think "Cruz" could be his name.