Clumsy Smurf appeared in "Royal Wedding". He and the Smurfette were getting married until she called off the wedding because she didn't want to marry him. But the Clumsy was determined to marry the Smurfette especially when she became smitten with Twist because he makes her laugh. Since the Smurfette was in love with Twist because of his humor, Marina, Kiki, and Shout did their best to help the Clumsy become funnier than Twist. To make the Smurfette laugh, the Prince gets into a pretend wedding cake. When the Clumsy came out, Harper accidentally shoved a real cake in the Smurfette's face much to the Clumsy's disappointment. The Clumsy was so upset with this mishap that he shoved another cake in his own face, much to the Smurfette's amusement. She immediately becomes smitten with the Clumsy and marries him instead. After the wedding, the Smurfette continued to be funny for his bride.
Marina looked like she had a small crush on the Clumsy when he arrived; she was looking at him with a dreamy look in her eyes, and she was the only Fresh Beat laughing when he had his foot stuck while trying to get in the carriage.