The characters may be tweaked further before they are introduced into various episodes, but some early photos introducing the main characters.

Sam, the center of the series. He’s can be a bit too enthusiastic at times.

Deb, Sam’s big sister. Wise and dependable, a good influence over her younger brother.

Hank, the new kid at school, on one of his happier days…  (He’s not that bad really…)

Liana (left) and Elenor (right) are great friends.

Helen makes an appearance in episode 2, but joins in more seriously in episode 3.

The last main character, Bear, is still under development.

[Update: Feb 4th. Early draft of Bear. I might need to tone down his muscles… but then again!]