I played Ralph Rackstraw in our production of H.M.S. Pinafore.
I had a few lines in the one play I was in. I tried out for the lead (the play was “Night of January 16th” and I wanted to be one of the lawyers, but I didn’t make it). I ended up being the court clerk. I still remember, on opening night, when the guy playing the bailiff (who was supposed to just have a nonsense background conversation with me) asked out of the blue, “So, what’s your opinion on anal sex?” It was all I could do not to lose it, mostly out of shock. 
Never really went in for drama that much because I wasn’t comfortable playing most of the female roles. I think if I were a guy I probably would have been more active in drama. IMO the guy roles were almost always more interesting.
I have had a love of theater my whole life. From 3rd grade on I was in all kinds of plays. Both leads, supporting roles, sets, costumes, props and lighting.
But in 12th grade I was Professor Harold Hill in The Music Man.
It doesn’t get any better than that.
I picked Top Supporting Cast as the closest match. I was Cassius in a fifth-grade class production of (a heavily abridged) Julius Caesar because I indeed had a “lean and hungry look” at the time. In college, I played Luka Lukich in The Government Inspector and the porter in Thornton Wilder’s Pullman Car Hiawatha. In a program of Harold Pinter sketches, I was cast as Mr. Lamb in Applicant as well as the guy who has one line in Dialogue for Three, but whose silence is the most eloquent component of the piece.
Senior HS play: The Music Man. I played Marcellus (Buddy Hackett).
College: General Fairfax in the musical Little Mary Sunshine.
8th grade play: Around the World in 80 Days. I played a member of Fogg’s club and had a handful of lines.
In 6th grade I sang the role of Amahl in a HS production of Amahl and the Night Visitors.
The worst role in a school play I have ever seen was the poor fellow who played a marble bust in Shakespeare’s Julius Caesar.
He stood in a hollow plinth - centre stage - for the whole second act, visible from the top of the arms up. He had to stay motionless, with his eyes closed. He was covered in what looked like zinc cream, hair as well.
I picked up his quick movement to put a few blood pills in his mouth, so when Caesar was stabbed, he could drool red ‘blood’.
So - no lines, no movement, maximum makeup, pretty uncomfortable, relevant for 5 seconds.
I was a daisy. The bugs sang to us, and we sheltered them from the rain.
“Come now blooming flowers
Lend yourselves to grace our bowers
Till this sparkling shower
Is all over with in an hour.”
But we moved right before the actual performance, so I never got to be on stage at all. That was in primary school, my high school didnt have a drama department.
Kindergarten, I don’t remember the play title but I froze in the beginning and they had to hold the play around me. Never forgot that feeling.
Cello in the pit for a couple of shows (“Mame”, “On a Clear Day You Can See Forever”), handling a spotlight for one show (which I’ve forgotten), then Mr Bumble in “Oliver!”, for which I did all my own stunts (falling down a flight of steps).
usually top supporting cast, sometimes more minor roles. played the elder stepsister twice in two different versions of cinderella (discovered during one of those productions that doing over the top comedy without cracking up yourself is hard work). it was a lot of fun, i miss it sometimes.
Depended on the class. I was in a French immpersion program half the day, English (for math and, well, English) the other. So half of my grades, my “home room” was in English, and half it was in French.
In years I was in a French home room, I was scenery. My French sucked even compared to my classmates.
In years I was in an English home room I always had a big part. I can act.
All in all, that was a good deal.
My best role was playing a reindeer in the school play around Christmas 1974. I was in the fourth grade, and we reindeer were allow to wear our paper antlers for the rest of the day. The younger kids thought we were the shit. I recall giving autographs.
Dumbest roles: 7th and 8th grade where it was decided that every kid in the class HAD to have a speaking role in the play. So that left no one to do costumes*, sets, stage crew, &c. The drama teacher would take what was a nice play for kiddies to put on (8th grade was Life with Mother Superior, for example, which you may be more familiar with as the movie Trouble with Angels) and chop speeches up and add scenes so that everyone had a role. Where did the extra scenes and dialogue come from? This one girl in the class whom the teachers thought was deep and arty, but who, in fact, had the creative and dramatic abilities of a shallow 13-year-old girl (because she was, coincidentally, a shallow and catty 13 year old girl). All of her scenes simply featured her friends insulting all the students they disliked. It was as hilarious as you might imagine shallow 13 year old girls to be.
It also meant an otherwise 45 minute play went on for three hours. It wasn’t a play, it was an endurance test (keeping in mind that about 1/2 the students didn’t want to be in it so had failed to learn their lines.) People missed their cues simply because they had fallen asleep back stage (the play went on in the evening of a school day, so pretty much everyone was tired and cranky before we even started).
*The brilliant solution? Hey, I was at a Catholic convent-style school, and Life with Mother Superior takes place at a Catholic convent school, so we could just wear our uniforms as costumes! And, hey, the drama teacher, who was around 900 years old, had boxes of old, cacky stage make up from when she and Plautus used to put on plays together, so why not let the 8th grade kids put make up on the 7th graders, and the 7th graders do the 8th? My mother said we were horrifying to behold.
You didn’t give an option for voiceless extra. I was random monkey #4 in monkey crowd in the Jungle Book in 2nd grade.
In third (?) grade, I was Peter Cottontail’s sister, Mopsy, and I got to sing a solo! When we were hopping onto the stage, one of my bunny feets came off and I had to wait until my song to hop back into it.
I was the director in two plays, one in my junior year, one in my senior year of high school. “Taming of the Shrew” and “Guys and Dolls.” I love telling people what to do, where to stand, how to enter, and what to say!