"Smallville" TV series characters and stuff.
I'll add every character, place and object, that appear in the "Smallville", with listing the episode they debut from.
Any ideas are welcome.
Here is the list of people that already played somebody in DC or Marvel comics-based media.
Annette O'Toole ("Martha Kent") also played Lana Lang in Superman III and voiced Atlanna in Aquaman (TV movie).
George Murdock ("Harry Volk/Harry Bolston" in 1x6 - Hourglass) also voiced Boss Biggis in Batman: The Animated Series and played Burton Newcomb in Lois & Clark: The New Adventures of Superman