That letter is H and comes immediately after the G.
His birth name should be Mehrdud Takalobighashi.
However no doubt due for the most part, to his profile on this website, there's only 5 working sources on Google which have spelt his full birth name correctly.
Here are the only 5 links which exist with the correct spelling of his birth name: Along with a 6th link where his name can be seen on Google, however it doesn't seem to have been saved in any archives, and isn't accessible in Europe. Here's the 6th link https://www.nydailynews.com/sports/more ... -1.391969/
Not happy with the above links as proof?
Then lets see how his younger, more famous, rapper brother, Mic Righteous aka Mic Reckless spells his surname.
Mehrdud Takalobighashi's brothers birth name is Rocky Takalobighashi.
Here are some links as proof: (it's in the copyright at the bottom) (here it is again on Apple Music much clearer)
Like my name's Max Teller or Jax Teller, But it ain't, it's the T-the-A-the-K-the-A-the-L-the-O-the-B-the-I-the-G-the-H-the-A-the-S-the-H-the-I and if you can't say the name, say it's Mic, 'Cause I put the ash it Takalobighashi, I put the loube in Takalobishashi...