User blog comment:Nightslayer2/Actors That I Think Would Be Good Enough To Appear In The Arrowverse/@comment-27700324-20170823080155

They already cast Accelerated Man AKA the E-19 Flash. He is played by Sean Vogue. He appeared in the Grodd two parter.

Also find Lex should have someone else playing him. Micheal may have been a good Lex, but someone else should play this version. That one was just the young Lex and couldn't play a more experienced genius.

As for the rest of the Smallville actors, they really are bad imo.