Unless I don't know the kanji for the word, I'll list them in this format:
<kanji> <kana> <romaji>
1. It depends:
Your older brother (talking to others) - 兄 あに ani
Your older sister (talking to others) - 姉 あね ane
Someone else's older brother (or yours while talking to family) - お兄さん おにいさん oniisan (chan etc)
Someone else's older sister (or yours while talking to family) - お姉さん おねえさん oneesan (chan etc) (uses a second えe to extend the vowel rather than an いi like most long えe's)
Younger brother - 弟 おとうと otouto (add san for someone else's)
Younger sister - 妹 いもうと imouto (add san for someone else's)
Brothers - 兄弟 きょうだい kyoudai
Sisters - 姉妹 しまい shimai
Brothers and sisters - 兄弟 きょうだい kyoudai (yeah same as just brothers)
2. Once again it depends:
Your father (talking to others) - 父 ちち chichi
Your mother (talking to others) - 母 はは haha
Someone else's father (or yours while talking to family) - お父さん おとうさん otoosan
Someone else's mother (or yours while talking to family) - お母さん おかあさん okaasan
Your grandfather (talking to others) - 祖父 そふ sofu
Your grandmother (talking to others) - 祖母 そぼ sobo
Someone else's grandfather (or yours while talking to family) - おじいさん ojiisan
Someone else's grandmother (or yours while talking to family) - おばあさん obaasan
Family - 家族 かぞく kazoku
Parents - 両親 りょうしん ryoushin
Aunt - おばさん obasan (no long あa or it becomes grandmother)
Uncle - おじさん ojisan (no long いi or it becomes grandfather)
3. Name honorifics:
さん san - standard, like Mr. or Ms./Mrs.. You pretty much always use this unless you're really close with someone.
君 くん kun - also Mr./Ms./Mrs. but more informal, used for friends, or possibly those of a lower status (teachers sometimes use this for their students), this is primarily used for boys. (I think the kanji is right, I've not actually learned it yet, but I've seen it quite a bit.)
ちゃん chan - see kun but mostly for girls and animals.
先生 せんせい sensei - teachers and doctors, really anyone who has some kind of special skill.
様 さま sama - like san but formal, used when talking to someone with higher status than your own.
どの dono - above sama, you probably wouldn't have much reason to use this, but you hear it in anime and manga sometimes attached to the names of nobles and such.
no title - don't call someone without a title unless you are VERY close to them (family, significant other, long time friend etc).
I'm positive there are more, but these are the ones I can think of at the moment.