Artist Pardo posted on Twitter a few sketches of Ray and Reyes: 
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Nice sketches, but the faces are a bit generic. I don’t see anything specifically “Rey” and “Reyes” about them, other than the dialogue.
Reyes looks too old for a junior agent.
Good point actually. I think the reason might be that they´re (once again) heavily modeled after Mulder & Scully.