Ah, yes. Here we are. Carter. Played by Ethan Embry, a veteran actor who starred in the coming of age classic, “Can’t Hardly Wait” and who has been killing it as the late-blooming, trying-to-stay-sober son on Netflix’s “Grace & Frankie,” makes his debut appearance in Season 6 as Carter, a character who appears to be on an anti-Rick crusade. (Um, Carter, looked like maybe it was your ass who was calling for help and getting save a scene or two back…so maybe you should quit naysaying and start taking some notes on how it’s done, son…just sayin’!)