 While the Haitian cannot restore erased memories on his own, as revealed in "Godsend", the process can be undone by those with healing or regenerative powers.While armed with a copy of the Haitian's powers in "The Fifth Stage", Peter Petrelli was able to use this aspect of his abilities to suppress Sylar's consciousness and bring forward the copy of Nathan's mind within Sylar.He is also shown to be able to force a person into unconsciousness through physical contact, as he does to Baron Samedi in "The Eclipse" and apparently Sylar in "Homecoming".