Teddy comes back and refuses to leave. He gets on everyone's nerves but no one knows how to get rid of him. He begins to do everything that Derek tells him to do and Derek starts to like it but it makes Lizzie and Edwin suspicious of his intentions. Truman decides to make his and Casey's first date a really bad date because Casey wanted it to be memorable. He feels bad afterward so he lets Casey plan the perfect date, so Casey decides to pay him back by giving him a horrible date.
- Michael Seater as Derek Venturi
- Ashley Leggat as Casey McDonald
- Jordan Todosey as Lizzie McDonald
- Daniel Magder as Edwin Venturi
- Ariel Waller as Marti Venturi
- Joy Tanner as Nora McDonald
- John Ralston as George Venturi