I found a Doctor Who Easter egg hiding in plain sight for 7 years.
In the The Lost Dimension #1 (2017), the Eleventh Doctor speaks an alien language:
I've seen this for years, but never thought to look closer at the alien symbols. They obviously didn't match "We'll have the translation matrix fixed in a jiffy", so I knew something must be hidden here:
So I got to code breaking and long story short:
"A stream of unintelligible dingbats, an alien language"
And after all that hard work, I decided to Google "comics alien language font" and found out this is a font called Gobbledygook: