So I keep reading comments which imply this achievement is really easy once you work it out, but my brain must be broken because I can't even get started. Can someone give me some kind of hint to get going?
Ok so I got the first and second one, now im stumped do I search for characters or voice actors?
edit: The second one is a character that likes to get kitties wet.
edit2: *sigh finished it,
If you've got the voice actor but can't find the characters (remember, you're looking for the characters, not the games), just go to the voice actor's Giant Bomb wiki page. All of his relevant games are listed. Have a look through, go to the bigger hits, and find out which character he played in them. You'll get all of them pretty quickly.
Extra hint: The three characters you're looking for were leading protagonists in their respective games.