Chittenden was born in New Zealand and moved at age 11 to Perth, Western Australia. He graduated from WAAPA (Western Australian Academy of Performing Arts) and landed his first major part as Dean "Edge" Edgely in the television series Blue Water High. Khan shot numerous commercials and has done much voiceover work for W.A. based agencies Brainestorm and DoubleDragon – as well as appearing in a couple of short films.
