Urban WAS Dredd--he was perfect IMO. I loved the movie--everything was pretty much how I thought a Dredd movie should be--blew away the Stallone version.
I guess - to a lesser extent, Urban somewhat mirrors Hugh Jackman's ability to switch up when it's required; Bones McCoy one minute, & a sterner character the next. Kinda similar to Jackman's leap from Logan one minute, to 'The Boy From Oz' the next.