DOES ANYONE KNOW WHICH SHOW CARL LUMBLY, WHO PORTRAYED DETECTIVE MARCUS PETRIE HAS BEEN ON? HINT-IT ALMOST SEEMS AS IF THIS IS WHERE MARCUS PETRIE COULD HAVE NATURALLY ENDED UP.;)

CARL LUMBLY, WHO PLAYED MARCUS, IS ALSO ON ALIAS.

I think he was also on a show called "M.A.N.T.I.S"

Here is the link to his "filmography" on IMDb --- this covers all of his appearances --- there are lots!
http://us.imdb.com/name/nm0525855/