I looked up a few of the TV-MA or Rated R-type characters.

• Alastor (Hazbin Hotel)

• Alex (Magical Girl Friendship Squad)

• Bean (Disenchantment)

• Blitzo (Helluva Boss)

• Captain Hero (Drawn Together)

• Charlie Morningstar (Hazbin Hotel)

• Daisy (Magical Girl Friendship Squad)

• Foxxy Love (Drawn Together)

• Gary (Gary And His Demons)

• Invincible (Invincible)

• Killface (Frisky Dingo)

• Loona (Helluva Boss)

• Miriam (Dragon Age: Absolution)

• Omni-Man (Invincible)

• Prince Fichael (Farzar)

• Renzo (Farzar)

• Sterling Archer (Archer)

• Vaggie (Hazbin Hotel)

• Vex'ahila (The Legend Of Vox Machina)

• Xandir (Drawn Together)