millie bobby brown [ cheers and applause how did you do that? it's so good >> they're so good >> jimmy: that's really delicious. everyone, i want to show you a a clip [ light laughter ] it's still in my mouth here's millie bobby brown in season 4 of "stranger things." take a look. >> oh my god >> angela! ♪ [ screaming >> what the hell was that? >> jimmy: millie bobby brown [ cheers and applause season 4 of "stranger things" premieres may 27th on netflix. we'll be right back with more "tonight show. stick around [ cheers and applause ♪ ♪was there so ♪and then this vegan bakery came ♪was there so sliding down my screen♪ ♪and eva joan repair appeared and tightened up my seams♪ ♪voila marché rue dix remixed french tips and squid cuisine♪ ♪renowned♪ ♪endless, lit, infinite possibilities♪ ♪i'm down♪ ♪a world where personalized ads help good ideas get found♪ here's to real flavors... real meals. real good. all of knorr's high quality pasta and rice sides are now made with no artificial flavors or preservatives. knor

[ laughter ] >> jimmy: millie bobby brown should play you. yeah >> i mean, yeah, millie would be great but i don't really think i'm famous enough to cast millie you'll do it though, right >> jimmy: of course. [ laughter and applause >> no, millie -- millie would be so great. millie -- i mean, it's, kind of, uncanny how much we look alike. it's like, "oh, no we actually just look like sisters. >> jimmy: yeah, you really do. >> yeah. >> jimmy: i was just talking about you because the great adam sandler was on your show last week. >> aw! >> jimmy: and he loves you and he said that -- he told me that you performed at his daughter's bah mitzvah. >> i did i did, it was awesome. [ audience aws ] first of all, it was the craziest bah mitzvah i've ever seen -- in my life >> jimmy: oh, yeah >> as you would expect from adam sandler it was like -- i mean, it was like coachella >> jimmy: really [ laughter ] yeah >> i -- i couldn't believe it. and also, i was like, "wow, you guys booked me." i was really -- i was really honored. but his kids -- daughters a

bobby brown, who i have most of my work with on the show, all of my work with, is just the loveliest, you know, kindest, grounded person that you ever met, and i love her >> seth: it's one of the nice, like, sort of side stories about the "stranger things" phenomenon is watching all those kids grow up and realize that they're all good people. >> she was 11 years old when we met. >> seth: it's crazy. do you -- you -- now, obviously this was a big twist that your character came back. i think a lot of people assumed dr. brenner was dead >> was dead. >> seth: did you know from the beginning that you would come back for this season >> well, the duffers always promised that i was going to come back. they didn't know how, and they kept structuring the show like he's going to come back in a big way in season 2. and then i came just as a memory or a phenomenon of a shemira and then season 3, they just said, "we're going to save you for season 4." >> seth: did you believe them? or did you start doubting it >> i started doubting it >> seth: once you knew -- i mean, obviously this is one of thos