Might want to consider getting some pants tailored if you're wearing dress pants on a daily basis.
Shooters Outpost carries a wide selection of 5.11 pants.
Yeah maybe. Without knowing what is work-appropriate for the OP, we're at a disadvantage.
THAT said, Apex pants stand out like a sore thumb. You best have a closely trimmed beard, wrap-around sunglasses and wear your tan baseball cap with the velcro on the front backwards when wearing Apex. Great pants. SCREAM tacticool.
5.11 does have non-tacticool pants. My problem is the cost of the suckers. Basically, if you want something that looks like plain old chinos, you're gonna belly up $110 for the Class A's. The old Covert Khaki's could be well, but they looked like you put your bedsheets into the assicil/groinical regions. Anything else that resembles a normal "work" pant has too many seams and zippers.
I wanna like 5.11's. For a year or two, I DID wear them to work. And I looked like a damned tacti-fool. LOL
So it all depends on what "casual" means at the OP's work. I still probably wouldn't wear anything cargo if I worked in an office environment. But that's just me.