Devil May Cry

When Resident Evil 4 was still in production, it went under many changes. Whilst still under the working title "Biohazard 3.5," one of its versions included supernatural monsters. The difference from the other games caused a completely new game to be made, and for RE4 to be rebuilt from scratch.

This game became known as "Devil May Cry".

Similarities
Some enemies and locations still bear resemblance to Resident Evil enemies and locales:
 * Phantom and Kyklops are giant spiders resembling Web Spinners;
 * Marionettes are slow moving enemies similar to Zombies;
 * Blades are reptilian enemies similar to the Hunters;
 * Mallet Island bears some resemblance to Salazar's Castle;
 * Both Dante and Leon escape islands when they were going to blow (although Dante escapes on a plane and Leon on a jet-ski)

Common Actors
Since both series are made by Capcom, a number of voice actors and motion capture actors have had roles in both.