Max Evans' full name is Maxwell Evans, yet in this episode and 285 South (1999), Michael nicknames him Maximilian, which is sometimes considered a character error.
This is the only episode that Michael O'Neill plays Phillip Evans, Max and Isobel's father. He is replaced by Garrett M. Brown in episode 12 of Season 1 and plays the character for the remainder of the series.
Mary Ellen Trainer (Diane Evans) and William Sadler (Jim Valenti) are both part of The Die Hard franchise. Ms. Trainer was in the first one and Mr. Sadler was in Die Hard 2.