Volume 1 of Smallville: A Mother's Love, a Father's Strength.
- Lillian goes with Lex and Lionel to the Creamed Corn Factory and gets affected by the Meteors.
- Julian and Lillian live with Lex in the Mansion, with Lillian investigating the Meteors effects on humans.
- Julian joins Lex in trying to get Clark and Lana together.
- Lillian also explains Whitney's prank on Clark to Jonathan. This leads to Clark explaining the Meteor Rocks' effect on him to Jonathan.
- Lillian provides Lex with the new workers for his plan through Job Inc.
- Lex hires Nixon to investigate the Meteor Rocks rather than the bridge accident.
- Lillian captures Tina after Clark stops her and tortures her. It's later revealed she apparently was killed by Lillian's methods.
- Lillian assists Lex in his dinner for the Kents.
- Lana also becomes something of a big sister to Julian, confessing to him that she's afraid of the dark, the same as him.
- Lionel Luthor offers Lex a place at LuthorCorp, being in charge of three divisions.
- This leads to a conversation between Lionel and Lillian that reveals that Tess Mercer is Lionel's daughter with Pamela Jenkins.
- Also, while Lex is given a new vision when he greets Casandra, Lionel gets Lex's original vision.
- Cassandra's advice to Lex leads to Lex giving up the ruined Porsche.
- Lillian is made aware of Lex's enhanced immune system, leading to concern for his safety and the first rift between her and her benefactor.
- Lex is also distracted from meeting Dr. Hamilton as Lillian asks for his help with Lana's birthday party.
- Tess alerts Lex to the hostage situation.
- Lillian punches out Lionel.
- Lillian is also the one to hire Steve Hamilton for research into the Meteor Rocks.
- Lillian encourages Lex to leave Clark's love life alone.
- Lionel's argument with Lex over the Hardwicks is pushed up to this episode.
- Clark Kent
- Lillian Luthor
- Lex Luthor
- Julian Luthor
- Jonathan Kent
- Martha Kent
- Chloe Sullivan
- Lana Lang
- Pete Ross
- Whitney Fordman
- Lionel Luthor (5/9)
- Virgil Swann (4/9)
- Davis Bloome (3/9)
- Gabe Sullivan (2/9)
- Tess Mercer (1/9)
- Victoria Hardwick (1/9)
- Dominic Sanatori (1/9)
- Principal Kwan (1/9)
- Roger Nixon (1/9)
- Steven Hamilton (1/9)
- Sam Phelan (1/9)