When Ty and Tandy from Cloak and Dagger hold hands to leave the hostel in the dark dimension, they interlock their fingers (waffles) the way they make it a point to do in their original series.
John Ales and Annie Wersching also play roles in Season 1 and 2 of Star Trek: Picard. John Ales as Dr Bruce Maddox in Season 1 and had a similar beard. Annie Wersching played as the Borg Queen in Season 2.