Here is an orc I forgot to include in my Orc Army. A friend pointed out that the Gamorrean Guard figure from the Star Wars Command series makes an excellent orc. I only have a couple of these figures. Not enough for army building, but he does make a fine orc. He is about 45mm. He comes in the Rancor Revenge set which also includes a Rancor that works as a fantasy monster.
I remember thinking "why is there an orc in a sci fi movie" the first time I saw Jedi. Well, I am glad for it now.