Fables || talking animal || |- | Love and Marriage || 1958, 1963–1964 || 7 || Quality, Superior || various || romance || |- | Malu in the Land of Adventure || 1958 || 1 || Avon || Slave Girl Comics || adventure || |- | Man o' Mars || 1958 || 1 || Fiction House || various || science fiction || |- | Marmaduke Monk || 1958, 1963 || 2 || Ace || Monkeyshines Comics || talking animal || |- | Marty Mouse || 1958 || 1 || N/A || N/A || talking animal || not a reprint; apparently original material from Vincent Fago, among others |- | Master Detective || 1964 || 1 || Novelty || Criminals on the Run || crime || |- | Meet Merton || 1958, 1963 || 3 || Toby || Meet Merton || teen humor || |- | Mighty Atom || 1958 || 1 || Magazine Enterprises || Mighty Atom and the Pixies || fantasy || |- | Muggsy Mouse || 1958, 1963 || 3 || Magazine Enterprises || Muggsy Mouse || talking animal || |- | Muggy-Doo, Boy Cat || 1963–1964 || 2 || Stanhall || Muggy-Doo, Boy Cat || talking animal || |- | My Secret Marriage || 1958 || 1 || Superior || My Secret Marriage || romance || |- | Mystery Tales || 1964 || 3 || Avon, St. John, Toby || various || horror-suspense || |- | Pee-Wee Pixies || 1958, 1963 || 3 || Magazine Enterprises || Pee-Wee Pixies || fantasy || |- | Pinky the Egghead || 1958, 1963 || 3 || Comic Media || Pinky the Egghead || humor || |- | Planet Comics || 1958 || 2 || Fiction House || Planet Comics || science fiction || |- | Plastic Man || 1963 || 3 || Quality || Plastic Man || superhero || |- | Police Trap || 1963–1964 || 4 || Mainline || Police Trap || crime || |- | Purple Claw || 1958 || 1 || Toby || Purple Claw || horror-suspense || |- | Realistic Romances || 1958 || 3 || Avon || Realistic Romances || romance || |- | Red Mask || 1958 || 3 || Magazine Enterprises || Red Mask || Western || |- | Robin Hood || 1958, 1963–1964 || 5 || Magazine Enterprises || Robin Hood || adventure || |- | Romantic Love || 1958, 1963 ||