Bill Mumy (Anthony Fremont) and Cloris Leachman (Agnes Fremont) reprise their roles from It's a Good Life (1961), making them the only actors to play the same character in two different "Twilight Zone" series.
Produced as a sequel to the classic It's a Good Life (1961), this episode holds the record - 41 years and three months - for the longest interval between a television episode and its sequel.
This is the only sequel in the history of "The Twilight Zone".
Cloris Leachman has played Bill Mumy's mother four times: in My Own Master (1960), It's a Good Life (1961), Keep an Eye on Santa Claus (1962) and this episode It's Still a Good Life (2003).