Franknfire is Starfire, Wildfire and Blackfire's cousin ans a character in Teen Titans Go that first appeared in the fifth season episode Titans Horror Picture Show.
Franknfire is a Tamaranean Drag Queen who tries to give advices for the Titans when they create their own musical play...
She/He was voiced by Tim Curry who coincidentially played a similar character from 1975 musical-horror-comedy film The Rocky Horror Picture Show.