What did I miss? Blonde, or female? 
Cecil is Dr. Nick Riviera
I always think of comedian Lewis Black or Sidney Pollack when I read one of Diogenes The Cynic’s posts.
**Aldebaran ** is the terrorist in The Siege. Not only because they are both muslim but because the actor is french speaking.
Sanguine Spider is a black widow with the colors inverted.
Ukelele Ike is Dwight Eisenhower in a hawaiian shirt playing a ukelele
**Tentacle Monster ** is a small purple tentacle
Kalhoun is Will Forte’s Jim Kalhoun in SNL, the very soft speaking guy with the flashcards
Loopydude I imagine as a headless surfer dude because I misread it loppydude, as if his head was lopped off.
Left Hand of Dorkness is an evil-looking hand. A RIGHT, evil-looking hand; I guess my mind inverts the image 
Jerry Seinfeld with a teddy bear.
Yup, same impression here.
Whoops! Almost forgot…
Tijuana_Golds - a big bottle of Cuervo Gold.
I’m pretty sure Kalhoun is a girl.
Stink Fish Pot, I apologize in advance. Because of the Pittsburgh reference in your signature, I picture you as a dirty long frizzy haired hippy, sitting on the concrete stairs down at Point State Park, eating an unnatural colored fish that was just yanked out of the Mon.
No no no. You have it all wrong. Elenia25 is a young, exotic looking, raven haired beauty. She has the looks of being somewhere inbetween Arabian and Sicilian. The eyes are shaped like a cat’s. She is aware of her power over men, and mostly wears expensive pin striped suits with slacks, much to the dismay of her parents.
And Aldebaran is an old timey pre-Nazi German. His Fokker biplane crashed in the Arabian Desert during WWI. Presumed dead, he was forgotten about by his friends and family. He changed his name slightly from Aldus Baron in order to meld better into the local crowd. His garb now consists mostly of local fabrics, but he still walks around town with his waxed mustache, monocle, and pointed helmet on. (Then a fireman rushes in from the pouring rain.) Very strange.
Aldebaran ended up rescuing the fair Elenia25 from being Shanghaied by pirates…
Okay, now I’m just getting carried away.
Hee hee! Scout, I do apologise! And there you have my natural gender bias: If not explicit in the name, she must therefore be a “he”.
As for Left Hand of Dorkness, I envision an earnest young man (again) with an apartment bursting at the seams with sci-fi reading material. No surface goes uncluttered for long with this gentleman’s penchant for reading.
cuauhtemoc, whose name I always mentally mispronounce - in fact, I had to spend about 10 minutes searching the site for his name so I could spell it correctly, and it’s hard to search for something you can’t spell - makes me picture some sort of Aztec god.
This should not have taken me two reads to get.
That bastard never even calls…
I tried to post to this yesterday but it did not go through.
Flowerchild makes me think of hippies, of course!
Elenia25: my spouse’s name is Ellen which is Elena in Spanish. So this screen name makes me think of her.
Marley23: I like reggae music, so this name makes me think of Bob Marley and not Scrooge’s late business partner.
Greenback makes me think of dollar bills, which are sometimes called greenbacks.
Guinastasia seems like some kind of Wonder Womanish superhero.
Diogenes the Cynic reminds me of a Hunter Thompson-esque writer who is critical of mainstream society.
Rico reminds me of one of two things: the song “Suave Rico” from about a decade ago, or several major league baseball players in the seventies who were named Rico.
Tijuana Golds: some really good Mexican pot!!!
Steelerphan: visions of Bradshaw, Lambert, Mean Joe Greene, the Immaculate Reception, and other great moments of Pittsburgh football.
mangeorge is the Artist Formerly Known as Boy George!
paperbackwriter: the Beatles song.
Airman Doors: starting quarterback for the Air Force Academy
Coldfire: a book by Dean Koontz
If I am not mistaken, I think that Cuauhtemoc is in fact the name of an Aztec (or maybe Mayan???) deity. I also sort of recall someone running for president of Mexico who had this as his first name.
FilmGeek: the obvious image that comes to mind is of someone who really, really likes movies a lot. Or perhaps a student in film school.
JoeSki has a long, hard to pronounce Polish last name, so everyone calls him JoeSki instead.
HEY! NO TELLING!
(note: Sinshine is a short perky ball of energy who I’ve known for about a billion years.)
Couple of generations removed, but my family actually is Icelandic. Not too many redheads - hell, we could be related.
By Jerrybear:
Cuauhtemoc was one of the last aztec emperors, famous for having had his feet burned by Cortez to make him reveal the remaining aztec gold.Cuauhtemoc Cardenas is de Mexican candidate who ran for president.
GingerOfTheNorth makes me think of either a viking maiden or a plant growing in thick snow.
JoeSki is Joe Camel on skis.
And Greenback, lower case notwithstanding, I’ve been accused of many things…
Shyness ain’t one of 'em!
You’re a walking pile of shaggy dollar bills. American.
Good to know, as it’s Bob I was named for. People have on occasion asked my parents if I was named after Jacob Marley. Why would you name your kid after that character- to scare the hell out of him? 
So I’m rather a fan of Bob’s music myself.
Tiajuana_Golds is the kindly, female, 50ish, Aztec/Mexican proprieter of a small, friendly Mexican restaurant that serves, among other things, salsa that tastes vaguely like soap. All the regulars call her “tia”.
emekthian is a small, pointy-haired professor type in a white coat and wire-rimmed glasses, studying at a desk in a cluttered office. A glass case with pinned butterflies is on the wall.
ok I’m a little late, but I really want to know what other Dopers think when they see seaworthy.
And I’ll try a few…
The Great Zamboni- a zamboni on a trapeze, with some young hot assistants fawning all over him
vunderbob- very short, for some reason
Jerrybear makes me think of jerry-rigged, so I think of a teddy bear that’s really pieces of odd stuffed animals all stuck together
Sanguine Spider- probably not the image you try to project, but I picture you as a very giggly teenage girl
mangeorge- an orgy of food. My mind always wants to split it up like mange-orge, and mange means eat in French
emekthian- a small, wiry Greek boy
Actually, I’m 5’10". The bad news is that’s both tall and across…
Steelerphan: I wish I had a basement. Also: can barely draw for crap. Do have quite a bit of anime stuff on the walls, though.
I see Steelerphan as that guy you see in football games who strips to the waist and paints himself in his team’s colors.
Tijuana_Golds: Heh. Maniac Mansion. I like that.
I see Tijuana_Golds as a Mexican pimp with a glittery gold jacket, pants, and hat; a gold lame’ shirt, about 20 rings, the same number of gold teeth; and a gold 1975 Impala. With gold spinning rims, of course. He spends a lot of time in Vegas.
I’d like to see a very heavy ice rink shaving machine swinging from a trapeze. That would be quite a feat. The assistants would be nice, assuming they are female.
**Seaworthy- You are the crusty old Sea Captain from The Simpsons.