The two worked in the same office at Warner Bros. Animation and developed interesting personalities that the other staff had picked up on; Ruegger said that Minton seemed to be always scheming to take over the world, while Fitzgerald comedically agreed with him, injecting nonsense words like "Narf" and "Egad" around the office. The gag credit for the Tiny Toon Adventures episode "You Asked For It" credits Eddie Fitzgerald as "Guy Who Says 'Narf'". Series producer Peter Hastings described Eddie by saying, "He always greeted you like you were wearing a funny hat – and he liked it."
During the development of Animaniacs, animator Bruce Timm drew caricatures of Minton and Fitzgerald, and Ruegger then added mouse ears and noses to the drawing, cementing the concept for Pinky and the Brain. The Fitzgerald/Minton connection to Pinky and the Brain is shown in the episode "The Pinky and the Brain Reunion Special".Two characters shown as writers for Pinky and the Brain cartoons within the short are caricatures of Fitzgerald and Minton.
QueenBee299 OP t1_j515tpv wrote
Reply to TIL Pinky and the Brain was inspired by the peculiar personalities of two WB producers, Eddie Fitzgerald and Tom Minton with interesting mannerisms that were incorporated into the characters by QueenBee299
these are the photos of the producers: https://imgur.com/ELrlRfY