I know a person who used to work for Naughty Dog around the PS1 days for crash bandicoot(this person is now working at Suckerpunch). I met with him at a gaming convention and he told me that around the development of Cortex Strikes back Tawna Bandicoot was originally to be added in the game. Although they had to redesign the character due to getting "complaints" from parents about her looks. Tawna went through a lot of design changes, I saw one of them which looked a bit similar to Jessica Rabbit. Although Naughty Dog wasn't impressed by these design changes and they decided to drop the idea completely. Thats how Coco bandicoot came to be, although they never explained how Coco got there to begin with.
Speaking of Telltale games, Graham posted a comic that was supposed to be a puzzle for puzzle agent. Where you have to fill in the blanks of the comic with the words.