I found this hilarious random text generator. It comes up with characters for buddy movies. Sample:
( http://www.rain-street.org/fightcrime.htm )
Check it out!
He’s an impetuous dishevelled farmboy fleeing from a secret government programme. She’s an orphaned cigar-chomping detective from aristocratic European stock. They fight crime!
He’s a sword-wielding one-eyed cat burglar who hangs with the wrong crowd. She’s a mentally unstable junkie research scientist from out of town. They fight crime!
He’s a deeply religious Amish shaman from the 'hood. She’s a supernatural goth wrestler in the witness protection scheme. They fight crime!
He’s a Nobel prize-winning umbrella-wielding romance novelist living undercover at Ringling Bros. Circus. She’s a time-travelling tomboy traffic cop with the power to see death. They fight crime!
He’s a scrappy Catholic senator looking for a cure to the poison coursing through his veins. She’s a man-hating nymphomaniac archaeologist living on borrowed time. They fight crime!
“He’s a lonely native American paranormal investigator who hangs with the wrong crowd. She’s a radical insomniac fairy princess looking for love in all the wrong places. They fight crime!”
Looks like one of our own has taken up some extra-curricular activities… 
How many crime-fighters do we have at the SDMB?
“He’s an immortal vegetarian gangster on the hunt for the last specimen of a great and near-mythical creature. She’s a virginal renegade mermaid from Mars. They fight crime!”
He’s a maverick voodoo messiah moving from town to town, helping folk in trouble. She’s a disco-crazy kleptomaniac bounty hunter prone to fits of savage, blood-crazed rage. They fight crime!
He’s an ungodly small-town grifter who knows the secret of the alien invasion. She’s a psychotic impetuous cab driver married to the Mob. They fight crime!
He’s an obese bohemian cat burglar from the Mississippi delta. She’s a blind kleptomaniac queen of the dead with her own daytime radio talk show. They fight crime!
They get old quickly, but I liked this one:
**
He’s a war-weary bohemian rock star with a winning smile and a way with the ladies. She’s a manipulative renegade cab driver with a song in her heart and a spring in her step. They fight crime! **
He’s an unconventional ninja cowboy She’s a supernatural hip-hop pearl diver in the wrong place at the wrong time. They fight crime!
He’s a world-famous albino cowboy who hangs with the wrong crowd. She’s a mentally unstable belly-dancing museum curator descended from a line of powerful witches. They fight crime!
He’s an oversexed chivalrous barbarian gone bad. She’s an artistic paranoid hooker with a song in her heart and a spring in her step. They fight crime!
He’s an oversexed Amish photographer gone bad. She’s a provocative junkie snake charmer from out of town. They fight crime!
Ya know, I could learn to like this thing …
He’s an immortal drug-addicted hairdresser with a mysterious suitcase handcuffed to his arm. She’s an elegant foul-mouthed traffic cop in the wrong place at the wrong time. They fight crime!
He’s an ungodly flyboy card sharp on the wrong side of the law. She’s a transdimensional cigar-chomping museum curator with a knack for trouble. They fight crime!
He’s a hate-fuelled ninja senator with a winning smile and a way with the ladies. She’s a
beautiful streetsmart vampire who dreams of becoming Elvis. They fight crime!
He’s an old-fashioned native American waffle chef plagued by the memory of his family’s brutal murder. She’s a green-fingered goth nun operating on the wrong side of the law. They fight crime!
strange days indeed.
He’s a hate-fuelled small-town barbarian from the 'hood. She’s a mentally unstable antique-collecting femme fatale operating on the wrong side of the law. They fight crime!