Howling:Why is Rory Williams so similar to Mickey Smith?

Why is Rory Williams so similar to Mickey? Here are some of the similarites I spotted: See? Is this Steven Moffat's reimagening of Mickey or not? Or is it just coincidence...? BroadcastCorp (talk | contribs) 10:51, August 14, 2011 (UTC)
 * Both are the boyfriend/husband of one of the Doctor's companions (Rose Tyler and Amy Pond respectively).
 * Both have appeared as an Auton (in their first series too).
 * Both have departed/died in a story which featured a classic enemy.
 * Both had a suprise return in their second series' finale (DW: Army of Ghosts and The Pandorica Opens).
 * Both were recurring characters during their first series.
 * Both joined the TARDIS crew in their second series.