Zack Callahan ACTOR Zack Callahan was born as Zackary Sean Owen Callahan. He is an actor, known for Alex & Jaime (2017) and White Supremacy: Going Under (2016). Share onTwitter Share onFacebook Which celebrites shareYour Birthday How tall is Zack Callahan? Zack Callahan is 5'8"(1.73m)
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