In "Room for Improvement with the Casagrandes", Alexis played the tuba in the hallway. Mrs. Kernicky smacked a ball into the tuba causing them to blow it out. He later told Ronnie Anne that he knows his tuba is loud and that if she ever wants him to play the tuba somewhere else, that she can just say the word and he will comply.
In "New Roomie", Alexis and his family were hooked up with Vito Filliponio and his dogs Big Tony and Little Sal for temporary house guests. Alexis was the one who kicked Vito out and ejected Big Tony and Little Sal with his tuba.
In "What's Love Gato Do With It?", Alexis had his birthday which was attended by his bandmates. They were entertained by the magician Greta the Great.