I started to think about the TMNT, and how I loved them....

I based them a bit on Ram Jam and a bit on Dire Straits and a bit on Triumph.

L-R:

Casey Jones: Professional tambourine player(LOL), percussion,
lead/backup vocals, keyboards and harmonica.
Actually his voice is very slick and he's pretty good with quite a few instruments.

Leonardo: Lead/rhythm guitar, lead/backup vox.
Is highly notable for his loose, powerful vocals and his unique guitar tone and playing technique, kinda based on Mark Knopfler's.

Raphael: Bass guitar, backup vocals. He always waits to break into a bass solo and to show how skillful he is, always battles on the frontman position with Leo and Casey.

Michelangelo: Drums, backup vocals and rarely sings lead. he is wacky, enjoys beating on things, farely unintelligent, you perfect drummer.

Donatello: Lead/Rhythm guitar, Backup vocals. He is as known, highly intelligent, the most intelligent in the group actually, he perefers to be in the background although he's known to burst into high pitched screams and very technical solos.
I thought that him being left handed would explain a few things.