List of bands (31):

The Quill
The Reticent
The Sixpounder
The Treatment
The Warning
Them Damn Kings
Theory Of A Deadman
Therion
Those Damn Crows
Thraxas!
Three Days Grace
Threshold
Thunder
Thundermother
Thy Disease
Thy Will Be Done
Tiktaalika
Titanium
Torturerama
Toxic Terror