The fact that Gabriel Macht is returning as Harvey Specter for Suits: L.A. reveals one harsh truth about the “best closer in the city” from the original Suits. Given that Suits: L.A. was partially born out of how successful Suits became on streaming in the last couple of years, it was only a matter of time before a cameo from the original show was confirmed for the upcoming spinoff. Suits: L.A.’s first returning character from the previous series will be no other than Harvey Specter himself, with Macht set to reprise his role in a three-episode arc.

https://screenrant.com/suits-la-harvey-specter-crossover-main-character-not-mike-op-ed/