I know you all woke up this morning, asking yourself this very question as you slipped a string necklace over your head and adjusted it's jewel - a black flair pen - around to the front.
And just like Jimmy Fallon reunited the cast of Saved by the Bell (sans Screech, thank God), I decided that if I had my own talk show, I'd work on reuniting the cast of the literacy-promoting show Ghostwriter.

David López Alejandro "Alex" Fernandez
Barely surviving the humiliating smear fliers, this Queens-native was a character voice on the Grand Theft Auto video game in 2004 (for those of you GTA enthusiasts that read my website, he's in the San Andreas edition).  His last documented words to the press are, "My main ambition in life is to go back to Colombia and have a family." 
But first, Handro stopped off at Rutgers University in 2002 and has graduated (hopefully... unless he's a doctor or lawyer that moonlights as a video game voiceover) and gone back to the motherland. 
(*note: Alejandro was both me and my sister's first crush, and we sent him a letter telling him that in '94, and got a postcard back with a general "Thanks for being on the team!" or some non-personal crap.)

Sheldon Turnipseed Jamal Jenkins
Rally J, guys.  As the ringleader for most of the team's THABTO-hunting shenanigans, Sheldon decided to stay close to his Brooklyn home and attend NYU in 2002 and has since graduated. Since his alma mater is about 2 blocks from where I'm sitting now, this can only mean that a sighting during alumni week is basically guaranteed.
After being nominated twice for a Young Artist Award for both "Ghostwriter" and "Mo Better Blues" (1990), Jamal has basically chilled out and is probably a normal, productive citizen. Booorrrring.

Blaze Berdahl Lenni Frazier
This angsty team-member grew up to have a pretty normal adulthood, in spite of Stoop Dude's best efforts to make her crazy. Born in New York to a Broadway actor father and teacher mother, stepped away from the blank blue screen once and for all, and went off to Bucknell University and joined the same sorority as Tina (The asian one. See next). She was guest-starring for a bit on Third Watch, and got married to a guy named Stephen in '07 and now does voiceovers.

Tram-Anh Tran Tina Nguyen
The Vietnamese phenom has done nothing else on screen before or after her days as Tina, the classy and sassy one (Think: Lisa Turtle of GW). After 35 episodes and a Young Artist Award nomination, Tran hung up the flair pen and went to Penn State University, and was in a sorority and no doubt was asked every single day about who's a better kisser: Alex or Jamal. She graduated in 2001 with a degree in finance, and is probably loving being 30 somewhere.

Mayteana Morales Gabriella 'Gaby' Fernandez
After leaving the bodega for good, Gaby went to NYU with Jamal to study drama, and graduated in 2003.  She has most recently been seen doing dinner theatre productions and uncredited roles in obscure movies. Every time I go into a deli, I still think about the brother-sister duo living above me, beds separated by sheets and talking about the mystery that they're trying to solve with the help of a literate ghost.

Todd Alexander  Rob Baker
Prior to his GW-fame, he was in "Lean on Me" with Morgan Freeman.  Todd, whose last name is actually Cohen, was last documented high-fiving Jamal and Gaby around the quad at NYU, before he graduated in 2002. He is probably just chilling somewhere.

William Hernandez Hector Carrero
The Puerto Rican slash American (from NYC, of course) made a cameo for 2 seasons of GW and has since played a priest, a gang member, a police officer, a lawyer, a messenger, and a guy named "Silvio," in various movies.
His most recent role is playing himself in the Real World: Philadelphia, and is a self-proclaimed "avid Madonna fan" who left home at age 15 because his parent's weren't down with his lifestyle. He currently works as a part-time personal shopper, and has wisely chosen to not participate in any Real World / Road Rules Challenges, that would put him through some sort of gauntlet or inferno, and therefore public humiliation.

Richard Cox Max Frazier
Born in NYC's Chelsea hood in '48, Max had lucrative Broadway career (really making it in "Grease," obviously. Have you seen that mullet?) and since playing Lenni's hip, beret-wearing, keyboard-playing single father, has almost 100 TV credits for playing roles from a senator to a stalker. Not bad!

Marcella Lowery  Grandma Jenkins
Born in the '40s in Queens, nobody was more influential to Jamal, and the team, than Ghostwriter. Sike! I'm talking about Grandma Jenkins. (Nobody knows when or where GW was born. The investigation was inconclusive during season 1, episode 1.)
In '97, G-ma Jenkins was nominated for an Image Award for her role in "City Guys," and continues to be a guiding light in the life of a younger man as she now plays Donovan McNabb's mom in the Chunky Soup commercials.

and the who we don't even need to wonder "where is he now?!" about...

Samuel L. Jackson  Reggie Jenkins
And the "Most Improved Career" award goes to: Samuel L. Jackson. 
His Oscar nomination, 17 awards and 34 other nominations are just the result of his 3 episode cameo in the "Who burned Mr. Brinker's store?" debacle of '92.  The intensity in his eyes, when he studied the surveillance tape, and the way he negotiated information out of Jamal and the team and Mr. Brinker to find out the true story... these were all stepping stones to his prolific career.

Samuel L, you win the "where are they now?" because we all know. Hollywood. Kicking ass and taking names.