Jim Rockford
Steve Austin, better known as The Six Million Dollar Man.
That Girl…Marlo Thomas
Julia…Diahann Carroll (Mom said…“b b b but, she’s black!”
Another one for the Professor, here. And it didn’t hurt that he got a lot of subtext with Mary Ann, either.
I wanted to be the Princess Knight: Princess Knight - Wikipedia
I was a tomboy, I almost always identified with male characters - nothing that the TV or films associated with being a girl held any appeal for me - but I didn’t actually want to *be *a boy. So she was perfect. I had only half a clue what was going on, because I stumbled across this on a very fuzzy channel in Italy at a point when my Italian was pretty shaky, but I wanted to be her anyway.
PFC Paul LeMay from “Combat”, although he was usually called “Caje” because his character was a Louisiana Cajun, I thought his name was “Cage”. Had the best beard/5 o’clock shadow, looked cool shooting lefthanded, since he spoke French he could talk with the natives when the men of K company found one of those rare villages without an English teacher who was invariably a pretty 25 year old woman. Also in the episode “Mountain Men” he managed to get on a pair of skis and out race the skilled German ski troopers chasing him. We’ll ignore the fact that Normandy is flat since Pierre Jalbert, a fist class skier himself, told the director who said they wanted such an episode. Usually competent and brave, although in the D Day episode he broke down, ran away but ran into the French Resistance and returned with the weapons to free the prisoners and the wine to celebrate with.
I wanted to Mark Wedloe from Gentle Ben or Sandy from Flipper. Only as girls.
StG
Candy Pruitt, Head Mail Order Bride in Here Come the Brides (late 60’s, early 70’s) played by Bridget Hanley. She had beautiful red elaborately arranged hair, there were lots of eligible lumberjacks vying for the affections of her and her friends, and they all lived in the beautiful northwest U.S. There is, oddly, a Star Trek tie-in, one of the characters was played by Mark Lenard (Spock’s father) and one Barbara Hambly wrote a Star Trek novel involving Spock and time travel, sending him back to San Francisco in early days AND Here Come The Brides territory - to be adopted by Mark Lenard!
Another unremembered show, The Days and Nights of Molly Dodd, a moody dramedy set in a New York that is no more. Starred Blair Brown, a single woman with no visible means of support, but living pretty well nonetheless and having varied adventures in work and romance. She seemed so cool and sophisticated, and she bought shopping bags full of Chinese food, and every man on the show was protective and wanted her desperately, though she never noticed. Just drifted through life, working odd jobs…I do recall her ex-husband gave her some of his music on a new fangled thing called a “CD”, lol!
I wanted to be Mindy and live happily ever after with Mork.
Dawson Leery. He had the tomboy, girl-next-door, Joey Potter, he had the innocent, young, boyish charm. He was into Motion Pictures, and I could identify that as a big part of his personality, and mine. I took a Film course in college. I didn’t get the girl. Yet.
Veronica Lodge from The Archie’s. Still do, now that I think about it!
I also once sprained an ankle jumping out of a tree with roller skates trying to recreate something-or-other from The Bionic Woman.
A modern day Bret Maverick. I wanted to be him when I was in my 20s.
Spock - although just prior to that I did dress as Bugs Bunny for Halloween.
I wanted to be Laura Petrie, because she was married to Rob Petrie. Except I’d ditch those twin beds.
Then, when I turned emo goth adolescent, it became any female protagonist in the novels of Tanith Lee. All moody beautiful girls with impossible log hair.
(We had a TV growing up, but for most of my childhood it had only two acessible channels)
Another Spock here.
Goku from Dragonball
I identified most with Heckel and Jeckel, an old cartoon that’s never shown anymore, I think because it was politically incorrect. They were smartasses and I really liked that.
To Lynn Bodoni…when playing “girl stuff” I always wanted to “p’like I’m Debbie Reynolds.” (p’like=play like) Another friend was always Elizabeth Taylor. Don’t know if the scandal had happened yet.
If I had been a kid more recently it would be Xenia. 
Tintin.
Another girl who couldn’t identify with any female characters in the 60s. And the dog? I wanted a little white dog so badly!
Except nail either Mary Ann or Ginger, apparently.
For me: The Lone Ranger and Superman were my wannabes.