Alexander was born in Adelaide, South Australia but spent much of his childhood living in San Jose, California. Upon graduating high school he began comprehensive theatre training and not long after began to perform in professional theatre. During this time he became determined to obtain formal training from the Western Australian Academy of Performing Arts. Alexander admired the incredible quality of actors WAAPA produced and aspired to work with former graduates one day like Hugh Jackman, Tim Minchin and Jai Courtney. Renown for having a grueling multiple callback audition process Alexander is one of very few actors ever to be offered a place at WAAPA after a single five minute audition. He graduated with a Bachelor of Acting early 2017 and is now based in Los Angeles.