Michael J. Fox shi ne na farko da aka zaɓa don taka rawa Marty McFly, amma an ba shi izinin nunawa Family Ties. Gary David Goldberg ya ji cewa Fox yana da muhimmanci ga nasarar wasan kwaikwayon na 1985. Tare da abokin wasan Meredith Baxter a kan izinin haihuwa, ya ƙi ba da damar Fox lokaci don yin aiki a kan fim. Komawa zuwa nan gaba an shirya shi ne don sakin Mayu 1985 kuma a ƙarshen 1984 ne aka koyi cewa Fox ba zai iya yin fim ba. Zaɓuɓɓuka biyu na gaba na Zemeckis sun kasance C. Thomas Howell da Eric Stoltz. Stoltz sun burge masu samar da isasshen abin da ya yi a baya na Roy L. Dennis a cikin Mask (wanda dole ne a sake shi) cewa sun zaɓe shi ya taka rawa Marty McFly.
Marty McFly