6. Robin Williams as Seymour Parrish in “One Hour Photo”
Before 2002, audiences hadn’t seen the “Mrs. Doubtfire” and “Jumanji” star as a creepy, chilling guy, so when Williams was cast as Seymour Parrish in “One Hour Photo,” fans weren’t sure what to expect. In the tense yet slow thriller, Williams plays a photo processor who becomes obsessed with a family whose photos he develops. The casting choice was certainly surprising, but Williams stepped up to the plate, leaving his funny demeanor behind.