Elizabeth Mallory (played by Marnie McPhail) is the mother of Quinn and Colin Mallory and is from Kromagg Prime. She is seen in the episodes "Genesis", "Oh Brother, Where Art Thou?", and "Revelations" (though the version of her in "Revelations" is a double). It is never explained why Quinn and Colin's mother is not a version of Amanda Mallory, even though Amanda Mallory did say in "Genesis" that Quinn's birthparents are the doubles of her and Michael Mallory, although this could be a case in which doubles do not look similar, like Mallory and Quinn. Conrad Bennish, Junior (played by Jason Gaffney) of Earth Prime is a student in the same class which Quinn Mallory is a student, and Maximillian Arturo is a professor. Arturo finds him brilliant but obnoxious. Quinn and Bennish are friends. Bennish has an interest in drugs and bombs. When the FBI showed up to question him about the disappearance of the Sliders, he said, "If this is about the bong I just bought, I thought it was a plant-holder, honest!" He dresses in a stereotypically "hippie" fashion, wearing long hair and sunglasses. An alternate Conrad Bennish from "Summer of Love" has short hair, and identifies as a Young Republican in favor of the war that was taking place at the time on that alternate Earth. A version of Bennish is seen in "Last Days," where it seems his genius may be unchecked, and a danger to his particular Earth. He is also trying to create the "failed" atomic bomb, which that Earth's Albert Einstein purposely sabotaged. With Professor Arturo's help, he builds one, and successfully launches it against the asteroid set on a collision course with the Earth. After the bomb is built, Arturo, knowing that Bennish will now have unchecked power after he slides to a different world, takes a crucial part of the bomb plans and keeps it. But, unbeknownst to him until just before he slides, he drops it and Bennish finds it. The character only appeared once in the second season (and for the last time) in the episode "Invasion," though he is never named or credited as Bennish. Here, he is a prisoner of the Kromaggs, eyeless as a result. On Earth Prime, Michael Hurley (played by Gary Jones) works at Doppler Computer Store, and was the boss of Quinn and Wade until they went sliding (September 27, 1994).