Episode 5.04: Aqua
Airdate: Fall 2005
07/25 - Aquaman will come to the show as a love interest for Lois Lane.
07/23 - James Marsters sinks his teeth into another juicy role for The WB when he joins the cast of Smallville for multiple episodes. Marsters will portray Brainiac, a classic DC Comics villain and one of the Man-of-Steel's most formidable enemies. Marsters plays college professor Milton Fine, alter ego of the uber-villain Brainiac. Possessed of a vast, superior knowledge limited only by his hubris and emotions, Brainiac comes to earth armed with a secret about Clark's biological family and the truth about Krypton's demise. Brainiac's presence in Smallville will have a devastating effect on Clark and Lex's already deteriorating friendship.
07/23 - Tom Welling announced at the 2005 Television Critics Association press tour that their next episode to be filming would feature an appearance by another DC Comics character - Aquaman. He will have a romantic fling with Lois Lane. Professor Fine Propositions Clark - Professor Fine tells Clark that he should come work for him, even though Clark shows up late for his class and fumbles with excuses. "Actually, I'm not looking for a job, sir," Clark tells him. "The only thing worse than the fear of speaking the truth, is the fear of uncovering it," Fine tells him. "If you know Lex Luthor, ask him yourself." At the Luthor mansion.... - Lex has hired a swim coach. He's surprised to find "A.C.," a 19-year old phenom from the Stanford swim team. Why are my Hoyay alarms going off? "Your inexperience is a concern," Lex tells the young man. We learn that A.C. - Arthur Curry - bowed out of the Olympic trials. "There are more important things in life than chlorine and winning medals," Arthur tells Lex. "Like what? Finding the perfect wave?" "Among other things." - Lex introduces Clark to his new swim coach. Arthur recognizes Clark for a rescue from earlier in the day. "You were like a torpedo out there," Clark tells him. "I'm going to show our boy Lex everything I know," Arthur replies. - Clark confronts Lex, as he always does, and asks him why he needs a swim coach. Lex tells him that Arthur can do the 100 meter free-style in under fifty seconds, and Lex wants to try out for a Pentathlon. "It's something I need to do," Lex tells him. "Is building weapons something you need to do, too?" Clark asks him. Professor Fine has told him some new information about his bald friend... Later, in the Talon... - Arthur meets Lois at the Talon and says "Do you look beautiful or what?" Seems at this point he's already rescued Lois twice. - "You're not like most chicks, are you?" Arthur asks Lois. "Life would be a whole lot easier if there were," she tells him. He calls her on her "bad-ass" attitude, but inside sees her tenderness. Arthur kisses her. Clark walks in to the Talon at that time. source: spoiler fix