Alexz was born in New Westminster, BC Canada and currently lives in Vancouver. She's the sixth child in a family of ten. Her brothers and sisters, oldest to youngest are Matt, Andy, Brendan, Adam, Caity, Zac, McKenna, and Garrison. She used to attend public school but is now home-schooled in preparation for an album. One song she co-wrote was featured on her breakthrough show, So Weird, called 'To Dream About You'.
Her brother Matt Johnson and sister Jana Johnson are also actors. Her brother Brendan is a model. Co-wrote the song 'To Dream About You' with her producer, which aired on the episode 'Carnival' of So Weird. Her brother Matt co-starred with her on So Weird when he did the guest role of Quinn Carter on the episode 'The Muse'. Sings all the songs on the show "Instant Star"