The Challenge: World Championship (Season 1) - Non-Spoilers

Departure Day: October 18-20

Potential Cast members and alternates: (No one is 100% confirmed until departure)

Men

Danny McCray (Survivor)

John "Johnny Bananas" Devenanzio (The Real World: Key West)

The Challenge: Ride or Dies Champ (If it was a new champ)

The Challenge: Australia Champ

The Challenge: UK champ

The Challenge: Argentina Champ

Women

Amber Borzotra (Big Brother)

Jonna Mannion (The Real World: Cancun)

Kaycee Clark (Big Brother)

kellyanne Judd (The Real World: Sydney)

Sarah Lacina (Survivor)

The Challenge: Ride or Dies Champ (If it was a new champ)

The Challenge: Australia Champ

The Challenge: UK champ

The Challenge: Argentina Champ

Up in the air (need more confirmation to put in either category):

Men

Abram Boise (Road Rules: South Pacific)

Adam Larson (Road Rules: The Quest)

Alton Williams (The Real World: Las Vegas)

Benjamin Driebergen (Survivor)

Brad Fiorenza (The Real World: San Diego)

Christopher "CT" Tamburello (The Real World: Paris)

Dan Setzler (Road Rules: Northern Trail)

Dan Renzi (The Real World: Miami)

Darrell Taylor (Road Rules: Campus Crawl)

Derrick Kosinski (Road Rules: X-treme)

Emanuel Neagu (Survivor Turkey)

Frank Sweeney (The Real World: San Diego 2)

Grant ***** (Love Island Aus)

Hunter Barfield (Are You The One? )

Jamie Murray (The Real World: New Orleans)

Jordan Wiseley (The Real World: Portland)

Josh Martinez (Big Brother)

Kyle Christie (Geordie Shore)

Landon Lueck (The Real World: Philadelphia) 

Lionel Ferro (The Challenge: Argentina)

Lizardo Ponce ( The Challenge: Argentina)

Marley Biyendolo (big Brother Aus)

Mark Long (Road Rules: First Adventure)

Maxie "MJ" Garret (The Real World: Philadelphia)

Nam Vo (Ultimate Beastmaster)

Nehemiah Clark (The Real World: Austin)

Octavio "Oky" Appo (The Challenge: Argentina)

Rodrigo Cascon (The Challenge: Argentina)

Rogan O'Connor (Ex on the Beach UK)

Stefano "Yeyo" De Gregorio ( The Challenge: Argentina)

Syrus Yarbrough (The Real World: Boston)

Tony Raines (The Real World: Skeletons)

Turabi "Turbo" Camkiran (Survivor Turkey)

Tyler Duckworth (The Real World: Key West)

Xavier Prather (Big Brother)

Yes Duffy (Road Rules: Semester at Sea)

Zachary Nichols (The Real World: San Diego 2)

Women

Alyssa Lopez (Big Brother) 

Ashley Kelsey (The Real World: San Diego 2)

Ashley Mitchell (The Real World: Explosion)

Claudia Albertario (The Challenge: Argentina)

Coral Smith (The Real World: New York)

Cynthia Roberts (The Real World: New York)

Emily Schromm (The Real World: D.C. )

Evelyn Smith (The Challenge: Fresh Meat)

Ibis Nieves (Road Rules: Extreme)

Jennifer "Jenny" West (Survival of the fittest)

Jillian Zoboroski (Road Rules: Ex-Treme)

Jodi Weatherton (Road Rules: Extreme)

Julie Stoffer (The Real World: New Orleans)

Julieta Puente (The Challenge: Argentina)

Justine Ndiba (Love Island)

Katie Doyle (Road Rules: The Quest)

Maria Callejon (The Challenge: Argentina)

Michele Fitzgerald (Survivor)

Nany González (The Real World: Las Vegas)

Natalie Anderson (Survivor)

Olivia Kasser (Love Island USA)

Roni Martin (Road Rules: Northern Trail)

Sam McGinn (The Real World: San Diego 2)

Sarah Greyson (Road Rules: Campus Crawl)

Sarah Rice (The Real World: Brooklyn)

Sofia Jujuy Jimenez (The Challenge: Argentina)

Susie Meister (Road Rules: Down Under)

Sylvia Elsrode (The Real World: Skeletons)

Veronica Portillo (Road Rules: Semester at sea)

Virginia Elizalde (Tv host & fitness instructor)

Don't expect

Men

Colin Mortensen (The Real World: Hawaii)

Danny Roberts (The Real World: New Orleans)

David Giuntoli (Road Rules: South Pacific)

Evan Starkman (The Challenge: Fresh Meat 2)

Frank Roessler (The Real World: Las Vegas)

Kenny Santucci (The Challenge: Fresh Meat 2)

Theo Von (Maximum Velocity)

Tyson Apostol (Survivor)

Women

Camila Nakawaga (Spring Break Challenge)

Cara Zavaleta (Road Rules: South Pacific)

Christena Pyle (Road Rules: South Pacific)

Dee Nguyen (Geordie Shore)

Jamie Chung (Real World: San Diego)

Janelle Casanave (The Real World: Key West)

Johanna Botta (Real World: Austin)

Kendal Sheppard (Road Rules: Campus Crawl)

Kina Dean (Road Rules: Extreme)

Laurel Stucky (The Challenge: Fresh Meat 2)

Paula Meronek (The Challenge: Key West)

Rachel Robinson (Road Rules: Campus Crawl)

Sol Perez ( The Challenge: Argentina)

Tonya Cooley (The Real World: Chicago)

Tori Hall (Road Rules: Viewers Revenge)