Mackenzie is a special case since they are able to change genders at will, this spot focuses on their male form, which doesn't have anything special to it, though here is their personality for a better picture of the character

Mackenzie is usually a very calm yet slightly cowardly person. They're really intelligent when it comes to Pokemon due to their heritage, though they are easily scared. They are whitty at times and like to make occasional jokes to their friends. They try to get out of their comfort zone when it comes to socializing, however they can’t really figure out how to start conversations so they usually wait for the other person to engage in conversation.