Season 18, billed as "Unfinished Business", features the return of four openly LGB Racers from season 14. Josh and Brent are the stars of the series The Fabulous Beekman Boys. Jaymes and his Race partner James Davis are both performers with the Chippendales male dance revue.John Cass (Season 1) Andy Silva (Season 1) Gordon Sloan (Season 1) Nathan Morris (Season 2) Sahra Kearney (Season 2) Claire Bellis (Season 3) Jaime Cedra (Season 3) Jamie O'Brien (Season 3) Geneva Loader (Season 5) Rachael Burns (Season 5) Michael Farnsworth (Season 5) David Graham (Season 6) Rob Rigley (Season 6) Lauren Clayton (Season 6) Nick Sady (Season 7) Zach Douglas (Season 7) Renee Black (Season 8) Benjamin Norris (Season 9) Tully Smyth (Season 10) Benjamin "Ben" Zabel (Season 10) Nathan Little (Season 10) Jason Roses (Season 11)John Cass, Nathan Morris, Jamie O'Brien, Claire Bellis, David Graham, Rob Rigley, Zach Douglas, Benjamin Norris, Ben Zabel and Nathan Little are gay.
Plummer and Roberts are their neighbors and owners of the American Hotel in Sharon Springs, New York, where the series is set. Other contestants Sonique, Kenya Michaels, Carmen Carrera, and Monica Beverly Hillz are transgender women. While in Mexico on vacation his friend outs him as bisexual to two girls on the beach. Christina, Shelly, Zuly, Rocky, Redd, Blu, Kat, Olivia, Diamond, Kandyce and Deshayla are gay.
Andy Silva, Gordon Sloan, Sahra Kearney, Jaime Cedra, Geneva Loader, Rachael Burns, Lauren Clayton, Renee Black and Tully Smyth are bisexual.