I wish I knew if you were joking or not. Yes, Tommy Chong play Leo on "That 70's Show" but he was also part of the comedy team that I grew up with, "Cheech and Chong". "Dave's not here, man"
Okay. It is just that people of my generation know Cheech and Chong very well and so I just assumed that you knew who he was and was joking. It's hard to tell when you're just reading text and not talking face to face.
You probably have seen Richard "Cheech" Marin in movies also. He is in a lot of Robert Rodriquez movies like Spy Kids. "Cheech" is a nickname because apparently he really likes chicharrónes (fried pork skin).