The line quoted by Eugene Hamilton (Roger V. Burton) using his voice modulator is from Stanley Kubrick's sci-fi epic 2001: A Space Odyssey (1968).
When Social Services drops off Chucky (Kellen Michael) at the house, Fiona (Emmy Rossum) asks Ian (Cameron Monaghan), "Would you get your Nazi nephew some food?" Seeing that Ian is not actually Frank's biological son (but instead Frank's brother Clayton), Chucky is actually Ian's first cousin once removed.