June Foray provides the voice of Blocky and Svetlana which are both parodied characters of Rocky and Natasha, who are also voiced by Foray.
Because Cree Summer was unavailable at the time due to touring commitments, E.G. Daily provides the voice for Susie in "The Last Babysitter".
Phil and Lil are absent from both segments.
Kath Soucie provides the voice for Alisa Carmichael. Later on in the series, Alisa was performed by Bettina Bush.
One of the monsters Susie shows to Tommy almost resembles the mythical creature known as "The Rake", which has since become a popular Creepypasta character.