Interesting to note that some of the Transformer-oriented charactors had Black Greek-esque names:
OMEGA Supreme
Vector
SIGMA
ALPHA Trion
Sorry, no characters had the name Delta (AFAIK)
ETA: Slight hijack--I remember reading back in the day one of those Houghton Mifflin reading books ("Images") and there was a play in it called "The Book That Saved the Earth" and in it there were also some characters with Black Greek-esque names:
Captain
OMEGA
Sergeant
OOP
Lieutenant
IOTA
I wonder if author Claire Boiko (who I by accident saw her as a contestant on Match Game '90, btw) was a Black Greek or had relatives who were Black Greeks. Just interesting.