- Alfonso Ribeiro (Self - Host)
- Julianne Hough (Self - Host)
- Derek Hough (Self - Judge)
- Carrie Ann Inaba (Self - Judge)
- Bruno Tonioli (Self - Judge)
Episode: Week 4: Trio Night
Air Date: 2018-10-15
The 10 remaining celebrities discover that two may be company, but three is definitely not a crowd as former show stars, as well as some newbies, join the couples for a special Trio Night.