Because you like Lewis in Meet The Robinsons
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.
Using a bracelet his late mother gave him, Apollo Justice can sense when other people are nervous based on even the most subtle signs. See them in Ace Attorney Series .
R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.
The Genie is the perfect buddy, granting every wish we might have and keeping life good-spirited. See them in Aladdin.
Sarcastic and always complaining, C3PO is a droid that despite his quirks you always want by your side. See them in Star Wars Series.
The Ice King is lonely and looking for a princess to sweep him off his feet. See them in Adventure Time.
Fox McCloud leads a team of pilots through the Lylat System in search of the evil genius Andross, the villain that killed his father. See them in Star Fox.
Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.
The witty Aku would be an ideal dinner guest, if he weren't a demon. See them in Samurai Jack.
Others see him as the town nutcase, but Flint Lockwood knows his inventions will change the world someday. See them in Cloudy with a Chance of Meatballs.