The Last Name is the 12th episode of Season 5
Plot
On one crazy and hilarious attempted adventure, The Lab Rats finally try to find out Mark and Tex's last name.
Cast
Billy Unger as Chase Davenport
Spencer Boldman as Adam Davenport
Kelli Berglund as Bree Davenport
Tyrel Jackson Williams as Leo Dooley
Hal Sparks as Donald Davenport
G. Hannelius as Elena Davenport
Zendaya as Sara Davenport
Ryan Newman as Hallie King
Rahart Adams as Zax Knight
Kyle Massey as Mark
Brec Bassinger as Tex
Chanel Celeya as Aubree Davenport
Mateus Ward as Marcus Davenport
Jack Griffo as Zeta