PurpleGeth said:
13-14s (Nishinoya): Yuki Sato https://twitter.com/tapioka171/status/1215698957654904832

Bloodystar said:
17-18s (Hinata) presumed to be Fukuda

Takahashi was action AD for the OP so I think he deserves a tag, other possible KA based off of confirmed scenes and being key figures in S4 would be Satoshi Nagura, Mai Yonekawa, and Takahisa Katagiri... IG series are always hard to guess on so withholding the tag because it'd be a blind guess at best.