We usually travle in groups of three and five, but it is not unheard of to travle alone, but the groups are in threes and fives.
If you want to be in a certain custer of characters seek out the leader of them and see if they will allow it.

The King of Nightmares, King Kane.

From The Dark Ages Three Loners Come in Denmark

Nicolas

Norway

Jacob

and Sweden

TiKhar

From Japan Comes:

Yuichi (M)Yu: Brave, Ichi: One. Yoshihito (M) Yoshi: Happy, Hito: Person Goyo(M)(M)Go: Five, Yo: Generation Fuyuhiko(M) Fuyu: Winter, Hiko: Prince Takeshiro (M)Takeshi: Stern, Ro: Male

From China Comes:

Yi Li (M)Yi: cheerful Ming Wang(Wong) (F) Ming: Bright Hong Zhang(Chang) (M) Hong: great

From England Comes: (5) (3 F, 2 M)

From France Comes: (5) (all F)

From Protragal Comes (3) (2 F, 1 M)

From Spain Comes: (1) (F) (More will be listed later. I hope you having meanings for each of the characters first names at least.)