|Name||Dr. Phil Perlmutter|
|First Appearance||Known Unknowns|
In order to hide the fact he's not registered at a medical conference, House gives the name of one of the other doctors who have registered but haven't shown up.
When Wilson expresses concern that Perlmutter will suffer professionally because of the speech, House reassures him that he learned that Perlmutter was stuck in Toronto, Canada all weekend and has a perfect alibi.