Robby Hayes, Corinne Olympios lead 'Bachelor in Paradise' Season 4 cast

The new Bachelor in Paradise cast is what a devout Bachelor Nation fan would expect — and yes, that means Corinne Olympios is set to return.

On Tuesday, ABC announced the first 16 men and women who will be appearing on the fourth season of the summer series and among them are two runner-ups (Raven Gates from Nick Viall's season of The Bachelor and Robby Hayes from JoJo Fletcher's season of The Bachelorette); two returning Bachelor in Paradise stars (Amanda Stanton and Vinny Ventiera); and four villains (Olympios and rival Taylor Nolan of Viall's season, Alex Woytkiw, who sparred with Chad Johnson on Fletcher's season, and DeMario Jackson, of Rachel Lindsay's current season of The Bachelorette). Jackson was eliminated on Monday's episode after it was revealed to Lindsay that he had an unfinished relationship back home.

Bachelor in Paradise reunites former stars of the franchise in hopes they find love with other former contestants. Last year's cycle ended with three engagements, though only one couple, Carly Waddell and Evan Bass, are still set to walk down the aisle.

The former Bachelor and Bachelorette contestants who will head to Sayulita, Mexico this summer for the summer spinoff have been heavily teased for months, and as recently as on last night's episode of The Bachelorette. Fan favorites from Viall's season of The Bachelor — Olympios, Gates, Alexis Waters (aka, the dolphin-shark) and Jasmine Goode — returned to offer their advice to Bachelorette Lindsay on the episode. Their cameos for Lindsay's mud-wrestling group date marked their second time on the Dallas native's journey to find love after a visit from several Viall castoffs on The Bachelorette's premiere.

See photos of Rachel Lindsay's suitors:

Read more: 'Bachelor in Paradise' Finale Sees 3 Engagements as ABC Renews Series for Season 4

Maltby, Olympios, Waters and Schulman were not shy about their interest in returning to ABC's reality show when speaking to The Hollywood Reporter at last season's Women Tell All special in March.

Waters could not have been more enthusiastic: "Hell yeah. I'm 100 percent down for Bachelor in Paradise. [Rachel] better get good guys [on The Bachelorette] because I'm going to take her leftovers."

Maltby was a bit more hesitant. "I'm hopeful to find love at some point, I don't know if that's with the Bachelor franchise or if that's just in everyday life," she continued. "I'm definitely going to stick with nursing, but I've always been a person where with every opportunity that comes my way, if I feel like it's a good one, I'm going to do it."

Olympios in March had not "even explored the idea yet" of joining BIP, but was "already doing some auditions for some big stuff."

Schulman was "open-minded," but told THR she was "not going to rely on finding love on The Bachelor or any [part of the] franchise. If it happens in a real-life setting, great because that's ultimately what I want."

Read more: 'The Bachelorette': How "Whaboom" Guy Is Maximizing His 15 Minutes of Fame

Gates had previously announced her return to the franchise on Viall's After the Final Rose special. The Arkansas native made it to the final two before Viall broke up with her and proposed to Vanessa Grimaldi. He and his Bachelor winner remain engaged. "I just believe in the process." she said about being confident in finding love this summer.

The Paradise group also traditionally includes a few contestants who were relatively unknown during their first round on the dating series or have been far removed from the franchise for years. This year's pack, however, contains few surprising newcomers.

Though the cast list has been announced, more surprises will be in store. This first batch of Mexico-bound singles only includes the initial group confirmed to set foot on the Chris Harrison-hosted spinoff. The cast of BIP shuffles each week, as a handful of contestants join the dating competition midseason to shakeup relationships. Unfortunately for them, some arrive to the beachfront property several weeks into the show, after a decent number of couples have formed and are well on their way to a TV proposal.

Many of Lindsay's future exes — who are still competing on The Bachelorette — are likely to make an appearance. The "Whaboom" catchphrase could reach Paradise's waters, Lee Garrett could return to shake up drama and even Johnson could be be back to claw his fingernails on a hotel suite door.

A full list of the Bachelor alums returning to find love on Tuesday, Aug. 8 (the series moves to Mondays, 8-10 p.m. on ABC in its second week) is below.

See how long every "Bachelor" and "Bachelorette" relationship has lasted:

Read more: 'The Bachelor' Runner-Up Raven Gates: I Know I'll Find Love on 'Paradise'

Contestants from Rachel Lindsay's season of The Bachelorette:

DeMario Jackson

Contestants from Nick Viall's season of The Bachelor:

Raven Gates

Corinne Olympios

Alexis Waters

Lacey Mark

Kristina Schulman

Danielle Maltby

Taylor Nolan

Jasmine Goode

Contestants from JoJo Fletcher's season of The Bachelorette:

Robby Hayes

Derek Peth

Vinny Ventiera (also of Bachelor in Paradise season 3)

Nick Benvenutti

Alex Woytkiw

Contestants from Ben Higgins' season of The Bachelor:

Amanda Stanton (also of Bachelor in Paradise season 3)

Contestants from Kaitlyn Bristowe's season of The Bachelorette:

Ben Zorn

Additional bachelors and bachelorettes will be announced at a later date.

Who do you hope to see make a surprise appearance? Share in the comments below and check in with Live Feed for more Bachelor franchise coverage.