"I saw Cary [Elwes] in a movie called Lady Jane, and he was perfect," director Rob Reiner told Entertainment Weekly. "He looked like a young Douglas Fairbanks, Jr. He was the only person I could imagine doing it with. I didn’t have anyone else." Related: Here's What The Cast Of Emily In Paris Thinks About The Show "The tone that Bill Goldman set was very clear from the word “go,” with the narrative device of Peter Falk telling this story to Fred Savage," Cary Elwes explained. "Once you cast Peter Falk, there’s your tone right there!" Casting Mandy Patinkin in the role of Inigo Montoya was also fairly easy for William Goldman and Rob Reiner. But taking the role meant to Mandy than the movie's creators understood. "That character just spoke to me profoundly," Mandy explained. "I had lost my own father — he died at 53 years old from pancreatic cancer in 1972. I didn’t think about it consciously, but I think that there was a part of me that thought, If I get that man in black, my father will come back. I talked to my dad all the time during filming, and it was very healing for me." As for the rest of the company that Inigo Montoya kept, Wallace Shawn (Vizzini) was not the original casting choice. Danny DeVito was their first choice. But once Wallace took the role, he made it his own. Nowadays, he's constantly stopped on the street for his part in the movie. While casting Wallace Shawn as Vizzini wasn't their first choice, André the Giant as Fezzik was literally the only person William Goldman and Rob Reiner had in mind. "Bill had always imagined Fezzik to be André the Giant," Rob explained. "I said, 'Yeah, let’s see if we can get him.' It’s not like you throw a stick and you hit 50 giants. I met him at a bar in Paris — literally, there’s a landmass sitting on a barstool. I brought him up to the hotel room to audition him. He read this three-page scene, and I couldn’t understand one word he said. I go, ‘Oh my God, what am I going to do? He’s perfect physically for the part, but I can’t understand him!’ So I recorded his entire part on tape, exactly how I wanted him to do it, and he studied the tape. He got pretty good!" Related: How 'Star Wars' Star Mark Hamill Was Cast In 'Batman: The Animated Series' As for Billy Crystal and Carol Kane, well, they were personally asked by Rob to play Miracle Max and Valerie in extended cameos. Rob told them that they could have a lot of fun with the roles and to play around. This is what attracted them to it. [EMBED_YT]https://www.youtube.com/watch?v=d4ftmOI5NnI[/EMBED_YT] "Billy came over to my apartment in Los Angeles and we took the book and underlined things and made up a little more backstory for ourselves," Carol Kane said. "We added our own twists and turns and stuff that would amuse us." "We ad-libbed a lot of stuff: 'Have fun storming the castle.' 'Don’t go swimming for an hour — a good hour'," Billy added. Thank goodness, Rob and William had such a great eye for who they thought could make us fall in love with their characters. Next: How The Cast Of 'Jurassic Park' Were Actually Trapped On The Island