Complex sentence: Four performers from America also made brief cameo appearances: comedic actor Chevy Chase appeared in a skit along with actor Seth Green--and comedians Jimmy Fallon and Sarah Silverman also performed.
Split into simpler sentences: Four performers from America also made brief cameo appearances. Comedic actor Chevy Chase appeared in a skit along with actor Seth Green--and comedians Jimmy Fallon and Sarah Silverman also performed.