Titans: Nightwing, Starfire, Cyborg, Raven, Beastboy, Flash (Wally), and Bumblebee
TT: Powergirl (Tanya), Bunker, Rose Wilson, KF (Wallace), Red Arrow (Emiko), Traci 13, Blue Beetle
YJ: Superboy, Impulse, Wondergirl, Tim Drake, Aqualad, Zachery Zatara, Empress, Toymaster
Titans East (aka Titans International): Troia, Ms. Martian, Tempest, Redstar, Solstice, Bombshell, Bushido
Bonus idea just because:
Tiny Titans: SB (Jon), Robin (Damian), Impulse II (Irey), Jai West, Little Wing (Maxine Baker), Darla Dudley