Yeah I'm waiting now to see how they do the next one , especially if they're used in Felton's character's presence.
It's interesting because in this universe , the Harry Potter movies are established as existing, thus we can assume all the actors are the same, thus we have a character who essentially is the same as one of those actors, in theory it should create strange moments. There's no reason for any of the flash characters to not stop and think 'gee, this forensic guy is like a Tom Felton clone'.

I can't even remember the HP jokes, but was excited to see Felton pop in.