Considered the secondary leading female in Homestuck, Dave is arguably the fandom's favorite character. Big shoes to fill. He's stoic, 'cool', and suave, though also has to be an incredibly touching actor--I picture him with a strong baritone register and a rock edge to his voice, though having tenor notes would be great.

SOME ROLES TO BASE HIS VOICE ON (Plus song inspirations!) ARE:

Moritz Stiefel, Spring Awakening--[I don't do Sadness, And then There were None[
Roger Davis, RENT--[One Song Glory, Your Eyes, Another Day]
Judas, Jesus Christ Superstar--[Heaven on Their Minds] (Judas is a SERIOUS Tenor, and you don't need his high-note capacity for this role, but he does have the kind of edge im looking for)

Feel free to sing any song, as long as it is from theatre!