After Clark Kent regains his power, Eric Summers (played by Shawn Ashmore) says "So cold, so cold." 2 years previously Ashmore had become the cold-based superhero Iceman when he played Bobby Drake/Iceman in the Fox's X-Men franchise.
Victoria Hardwick and her father, Harry Hardwick, have disparate British accents because Kelly Brook (Victoria), is from Kent, England, a Southeastern region, and William Samples (Sir Harry), is a Canadian actor putting on an Estuary Londoner accent. His accent is good, just regionally different from the actress playing his daughter.
The episode begins with a geology field trip. In the comics, Pete Ross was a geologist as an adult, before the 1986 John Byrne reboot.