Rodney Trotter and was born from a one line joke in the very first episode, "Big Brother". This became a long-standing joke throughout the entire series. It is revealed in numerous episodes such as "Big Brother", "The Long Legs of the Law", and "A Royal Flush" that Rodney is embarrassed about Del's antics, including lying to girls they want to date. In "Yuppy Love", he lied to a new girlfriend, Cassandra, that he lived in the posh King’s Avenue in order to impress her; however, she later found out where he lived when she phoned Nelson Mandela House. Del often asks Rodney
Rodney McKay several hours. McKay ultimately decides not to move forward with his marriage proposal, although Katie is left in the belief that he intended to propose. Katie and Rodney are no longer speaking in "Trio" because she interpreted his recent decision as a break-up and lack of interest, and she adds her name to a list to be transferred back to Earth. At the end of the episode, Dr. Keller asks Rodney out. In an alternate future in the season finale episode, "The Last Man", McKay loses Sheppard, Teyla, Ronon, and Carter, quits the Atlantis expedition team and becomes romantically involved