Lionel wears a green jacket over a white shirt, and red pants. He also wears brown shoes, and has blue hair and a mustache.
Lionel gives you the following puzzles in Professor Layton and the Miracle Mask:
Chapter 2: The Secret of Norwell
Upon searching for Roland around Stansbury, Hershel Layton runs into Lionel, and they talk about how Henry Ledore has to really pull his weight for the Ascot household. He asks Hershel to help him out with a problem concerning a brick wall he was making for his mother, and after helping him out, Hershel gives him luck on the brick wall.
Chapter 4: Angela's Tears
Hershel Layton, Randall Ascot and Angela come across Lionel on their way to the Wall of Norwell, and he asks why they were out so late. Randall tells him they came to say hello, and so he gives Randall a puzzle. He warns them not to get into trouble for staying out so late, and Randall tells him his father doesn't know of it, and asks him not to tell, and Lionel agrees.
"Short in stature but large of heart, Lionel's favorite hobby is to stroll around Stansbury. In fact, he doesn't do much else! Day or night, he'll be traipsing about the neighborhood, always dying to share a story or two about his youth but too shy to muster up the courage!"