Mitchell è nato il [[16 maggio]] [[1993]], a [[Toronto]], in [[Canada]].<ref name="FreshTVADM">{{citeCita web|titletitolo=Happy Birthday Atticus Dean Mitchell! |url=http://www.freshtvinc.com/blog/happy-birthday-atticus-dean-mitchell/ |datedata=May 16, maggio 2013 |firstnome=Brendan |lastcognome=Refresh |publishereditore=[[Fresh TV]] |deadurlurlmorto=no |accessdateaccesso=May 17, maggio 2013}}</ref><ref>Szklarski, Cassandra (January 5, 2012). [http://thechronicleherald.ca/artslife/48880-vampires-make-tweens-titter-think "Vampires make tweens titter, think"]. [[The Chronicle Herald]]. [http://www.webcitation.org/6Ep7msn6K Archived] from the original on March 3, 2013. "18-year-old Mitchell, from Toronto"</ref> Si è diplomato al [[Malvern Collegiate Institute]], un liceo di Toronto ed ha pensato di iscriversi alla [[Ryerson University]]. <!-- Mitchell is a drummer in a band called the fishwives that plays local shows in Toronto.<ref>[http://www.disneychannelmedianet.com/web/showpage/showpage.aspx?program_id=3143912&type=mitchell "Atticus Dean Mitchell - Gabe"]. Disney Channel Medianet. 2012. [http://www.webcitation.org/6Ep3VmNYR Archived] from the original on March 2, 2013.</ref><ref>Ginzburg, Dina (September 10, 2012). [http://www.themagazine.ca/2012/09/10/exclusive-interview-with-atticus-mitchell/#.UTI0ZRmmUoE "EXCLUSIVE Interview with Atticus Mitchell"]. The Magazine.ca. [http://www.webcitation.org/6Ep5QRPYP Archived] from the original on March 2, 2013.</ref> -->
