It seems that David Ramsey's John Diggle will be appearing "halfway through" the first season of Superman & Lois.
A promo for the return of Superman & Lois teases that "something sinister is going on here."
Preview trailer for the return of Superman & Lois with Episode 6 "Smells Like Teen Spirit"
Preview images with spoilers for Superman & Lois Episode 5 "The Best of Smallville"
Trailer for Superman & Lois Episode 5 "The Best of Smallville" airing March 23 on The CW
Actor Brendan Fletcher who plays "Thaddeus Killgrave" on Superman & Lois previously appeared on Arrow and Smallville.
Preview clip for Superman & Lois Episode 4 "Haywire" airing March 16 on The CW
Preview images with spoilers for Superman & Lois Episode 4 which is titled "Haywire"
Preview trailer for Superman & Lois Episode 4 which is called "Haywire"
Clip for Superman & Lois Episode 3 "The Perks of Not Being A Wallflower" in which the Super-sons ask Clark…