Q: When counting spaces for skills and abilities, such as the Thief skill 'Greedy,' do other figures block the path? How about doors?
A: When counting spaces like this, players ignore all other figures on the path. Unless line of sight is specifically stated as a requirement, figures only need to be in range for these skills or abilities to work. However, doors do block this path. A Thief cannot use 'Greedy' through a door because he cannot count spaces through the door.
Source: Official Errata