Cliff performs pinochle along with his father, a former trainer, and a buddy. Theo buys an affordable ring for his girlfriend Tanya. Earle Hyman as Russell. Roscoe Lee Browne as Dr. Foster. After Theo claims that he'll don't have any downside making it within the "actual world", the Huxtables convert their home within the "Actual World Flats" and educate him a lesson about the actual world; i.e., needing employment and references to get an house, earnings to get a financial institution mortgage, having to pay for his meals, and so on. Carl Anthony Payne II as Cockroach.