TUVOK
A poster asked the question sometime ago, why Tuvok almost never got cameos. I answered that VOY is a top-heavy cast. ALL of the bridge are stars. However, I forgot VOY ran twice as long as TOS. That's more than enough time to give each cast member 1 or 2 cameos a year. Kes, Nellex, Naomi Wildman, the Borg Kids, etc., not included. So Tuvok should have had 6-12, at least, cameos in 6 yrs.