Professor Beast Head is drawn to resemble voice actor John Rhys-Davies. Rhys-Davies was at the time best known for playing Sallah, an Egyptian excavator, in the Steven Spielberg films Raiders of the Lost Ark and Indiana Jones and the Last Crusade (apropos to his role in this Ancient Egyptian-themed episode). Rhys-Davies also had a prominent role in the 1987 James Bond film The Living Daylights, and went on to play Gimli in the Lord of the Rings films. His other voiceover work includes playing snooty piano player Tympannini in the Animaniacs short "Piano Rag," narrating the Pinky and the Brain short "Brainie the Poo," and playing the historical figure Macbeth on Freakazoid!'s contemporary animated series (and favorite spoof target) Gargoyles.