Special Guest Stars Sam Elliott as Perry MacGruber Maya Rudolph as Casey Guest Stars Joseph Lee Anderson as Maj. Harold Kernst Marielle Heller as Mac's Mom Co Starring Stephanie Czajkowski as Bex Dawson Rien Long as Baker Jaxx Mac Ericsson as Lil' MacGruber Ryan Kendrick as Mac's Dad, 1985 Marie Wagenman as Lucy Sofia Embid as Stacy Piper Vincent E. McDaniel as Agent Ronnie Tedd Taskey as President Melanie Nelson as Kathryn Harry Musselwhite as Havencroft Butler