Lulu is the main antagonist of Warner Animation Group's 10th feature film DC League of Super-Pets. She is a hairless guinea pig that was experimented on by Luthor and became a genius. Lulu was infused with psychic powers with a piece of a Kryptonite crystal. She is also the archenemy of Krypto. She was voiced by Kate McKinnon, who also played Kellyanne Conway in Saturday Night Live, Karen Griffin in Family Guy and Régine Le Haut in Leap!/Ballerina. Lulu was brought in and experimented on by Lex
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