My son has the Ogre. It has been a grouchy ogre, a baby ogre, a happy ogre, a hungry ogre, a curious ogre, and a sleepy ogre.
If you put a playskool soldier/person in his mouth, he chomps (or just about anything, for that manner).
We didn't take the club's zip-tie off, which is fine by the ogre.
We also got the Falcon/Eagle castle playset that has a DVD with tie-ins to all of their major LOB Imaginext lines that are original characters. When you wander the ogre towards the castle, it shouts "OGRE! RIGHT AHEAD!!!" and "That Ogre could cause Serious Damage!!!"
I don't know if it's compatible with any other playsets, though. I think there's a dragon that's compatible with both.