My Musical - S6-E6
Continuity mistake: Carla and Turk's song and dance, "For The Last Time I'm Dominican", was filmed a couple of months later than the rest of the episode because actress Judy Reyes, who plays Carla, was recovering from a broken hip at the original time of shooting. Stephanie D'Abruzzo, who played the patient, was brought back in to film the scene; her hair is noticeably longer during the "Dominican" song than during the rest of the episode.
My Musical - S6-E6
Continuity mistake: The EMT on the right of the screen has his hand on his hip, then on the trolley in an instant cut.
Answer: This is an American comedian called Scott Thompson, more widely known by his stage name of "Carrot Top".
Tailkinker ★