|Played by||Grant Gussim|
|Based on||Grant Gustin|
|Voiced by||Jordan Atkins|
|Singing voice by||N/A|
Sebastian Smythe is a character from the SIMGM Glee spoofs. He is based on the Glee character with the same name. He is played by Grant Gussim, the Sim equivalent of Grant Gustin.
Sebastian and Blaine are seen at the Lima Bean, and Sebastian tries to hit on Blaine. Blaine doesn't get any time to respond to his flirty actions, but he does smile because of it. Kurt then bumps in and takes Blaine away from Sebastian, who tells Kurt that Blaine "will come crawling to him".