as Jughead Jones on The CW's hit show "Riverdale,"

which returns January 20th at 8:00 p.m.

Here's my man, Cole Sprouse!

Oh! [ Laughs ]

Yeah, you did it. You did it to me again.

Oh, my God. I love it.

-All the way back from Peru, man.

-You've outdone yourself, buddy. I'm so happy to see you.

You know, I have an interesting fact for you, Cole.

Today is January 15th.

And did you know that your first solo appearance on this show,

a few years ago, was also on January 15th?

-Really? -You even drew a picture of me.

You drew a portrait of me at the time.

I don't know if you remember. I saved it.

-And this is it. -I hope so. Oh, geez.

I must admit, I've gotten a lot, lot better since then.

And next time I get to see you

and be blessed with your presence in person,

I have another one coming for you.

It's my little gift every time I come on the show.

And by the way, January 15th is now my day.

-Cole Sprouse Day? -It's my day. Yes.

-January 15th is Cole Sprouse Day on "The Tonight Show."

Every year, you will be here?

-Regardless of if I'm in Peru or I'm locked up in prison,

I'll find a way to make sure that I call you.

-At least we got a phone call.

That's just -- That's a guarantee, buddy.

-Yeah. -Please.

-And maybe some bail, if I'm actually in jail.

Help me out. -Where are you now, though?

Are you filming "Riverdale" or you're quarantining?

-I am quarantining, so I am back up in Vancouver.

We start the second half of the fifth season on Monday.

So I'm almost out of the lockdown.

-I wanted to ask you about something I heard

and I never knew.

It's about you and your brother.

Is it true that you were named after Nat King Cole

and your brother was named after Dylan Thomas?

-You know, I've heard people -- Now, Dylan Thomas

is probably way more legitimate,

because his middle name is Thomas.

But Nat King Cole -- I've heard Cole Porter.

I think that used to be something when Dylan and I

were going through our, like, young-child-star

publicity circuit.

My mom would just say it because it sounded artsy, you know?

-Yeah, exactly, yeah.

-I'm really just named after, like, cabbage, coleslaw.

That's the definition of my name.

It comes from cabbage farmer, I think, is --

-But Cole and Dylan -- they're great names.

-I think Cole's pretty great.

I think Dylan could use a little work.

-Dude, you and your brother, by the way, are --

Your brother's coming back to TV.

He's in the new Mindy Kaling show.

And, yeah, it was big news.

And then I don't know if you remember

what you commented on Twitter, because I follow both.

Do you remember what you said?

-Yeah. I asked him what the crew was going to do

when they find out he's just not funny.

-You go back and forth.

And I was actually going to show you some examples,

because this one thing --

You troll each other and, like, roast each other online.

This one time, you asked your brother, @dylansprouse,

"Were you Zack or Cody?"

Now, that's funny in itself. I give props for that.

I give a like on that one. I give a couple snaps.

But then your brother responded, and he said,

"I don't remember, actually.

I was too busy carrying the show on my back."

[ Laughs ] That got the clap from me there.

That was fantastic.

Did this start on social media

or is this always just a brother thing?

-No. I mean, this is how I feel like

healthy brother relationships end up

speaking to each other.

-Yeah, a healthy ribbing.

-And we keep each other, accountable,

keep each other humble.

But, yeah, it hasn't gotten

pushed too far yet, though, which is good.

I'm always, like -- I'm always nervous

that one day, one of us is going to say something

that really, like, stings a little bit too deep.

And we'll get one of those calls like,

"Why would you do that, dude, to the public?"

-"You took it too far, man. You took it too far.

It was funny, but you took it too far."

I want to talk about "Riverdale."

-Okay.

-This season is about to jump ahead to the future.

We have a big-time jump. Yeah.

-I'm excited. Explain what's happening.

-I'm excited for it, too.

So, we had to shut down,

obviously, because of the COVID lockdown,

at the final three episodes of last season.

So the first three episodes of this new season

are us finishing those ones.

-Wow.

-And in Episode 4, we do a big-time jump

and we all leave Riverdale at the end of Episode 3

and come back seven years later.

So I actually do get to play roughly my age,

which is wonderful.

-Yeah! The first episode is the prom, and --

-Yeah. The day we actually shot the prom

was the last day before we got the official shutdown

and were all sent back to the States.

-Wow. What a send-off.

-Yeah, It was kind of funny.

Well, you know, we celebrated like it was a real prom.

We were pouring some drinks. We were having some fun.

We were singing karaoke. It was a really wonderful time.

And then we got the shutdown next day.

And so, in some strange kind of way,

we had all celebrated and reveled without knowing that

that was going to be kind of this life-changing event.

And we finished the prom and then we all kind of

went on our separate ways for the entirety of the quarantine.

-So when people watch that, it has another --

like, another special meaning to it.

I want to show everyone a clip, buddy.

Here's Cole Sprouse in

the season premiere of "Riverdale."

Take a look.

-No, I won't help you. -No, no.

Cheryl, it's not an actual snuff film.

It's an act.

It's a way to get closer to the auteur,

the person who's been creating those re-enactment videos,

including the one with Jason and your father.

-I do want to expose that defiler.

What's this movie about anyway?

-Uh, it's a classic tale, one as old as time.

A girl meets a boy,

boy promises to make girl a star,

and -- and the boy kills the girl.

-[ Chuckles ] Charming.

Okay, but I'll need a wig.

I don't want anyone to recognize me by my signature red mane.

-Okay.

-Cole Sprouse, Season 5 of "Riverdale"

premieres this Wednesday at 8:00 p.m. on The CW.