Episode name:

Rickmancing the Stone

Season: 3

Episode: 2

Air date: July 30, 2017

Characters:

Rick Sanchez, 

Morty Smith, 

Summer Smith, 

Beth Smith, 

Jerry Smith, 

Armothy, 

Blue Footprint Guy, 

Colossus, 

Eli, 

Eli's Girlfriend, 

Genital Washer, 

Hemorrhage, 

Mechanical Morty, 

Mechanical Rick, 

Mechanical Summer, 

Mohawk Guy, 

Slaveowner, 

Taint Washer,