<Tr> <Td> Henry Spencer </Td> <Td> Corbin Bernsen </Td> <Td> Shawn's father; former SBPD sergeant / detective; SBPD Head of Consultants (2010--2012) </Td> <Td_colspan="8"> Main </Td> <Td_colspan="1"> Starring </Td> </Tr> <Tr> <Td> Chief Karen Vick </Td> <Td> Kirsten Nelson </Td> <Td> SBPD Interim Chief (2006--2008); SBPD Chief (2008--2014) </Td> <Td> Recurring </Td> <Td_colspan="7"> Main </Td> <Td_colspan="1"> Starring </Td> </Tr> <Table> <Tr> <Th> Name </Th> <Th> Portrayed by </Th> <Th> Occupation / Status </Th> <Th_colspan="8"> Seasons </Th> <Th_colspan="1"> TV movie </Th> </Tr> <Tr> <Th> </Th> <Th> </Th> <Th> </Th> <Th> </Th> <Th> 5 </Th> <Th> 6 </Th> <Th> 7 </Th> <Th> 8 </Th> <Th> Psych: The Movie </Th> </Tr> <Tr> <Td> Young Shawn </Td> <Td> Liam James & Skyler Gisondo </Td> <Td> Young version of Shawn Spencer </Td> <Td_colspan="6"> Recurring </Td> <Td_colspan="3"> </Td> </Tr> <Tr> <Td> Young Gus </Td> <Td> Carlos Mcgullers </Td> <Td> Young version of Burton Guster </Td> <Td_colspan="5"> Recurring </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="3"> </Td> </Tr> <Tr> <Td> Buzz McNab </Td> <Td> Sage Brocklebank </Td> <Td> Junior Detective for the SBPD </Td> <Td_colspan="8"> Recurring </Td> <Td_colspan="1"> Starring </Td> </Tr> <Tr> <Td> Winifred "Winnie" Guster </Td> <Td> Phylicia Rashad </Td> <Td> Gus's mother </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> Guest </Td> <Td_colspan="4"> </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Madeleine Spencer </Td> <Td> Cybill Shepherd </Td> <Td> Police Psychiatrist / Shawn's mother </Td> <Td_colspan="1"> </Td> <Td> Guest </Td> <Td_colspan="1"> Recurring </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Abigail Lytar </Td> <Td> Rachael Leigh Cook </Td> <Td> Shawn's ex-girlfriend </Td> <Td_colspan="2"> </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="1"> Recurring </Td> <Td_colspan="5"> </Td> </Tr> <Tr> <Td> Mary Lightly </Td> <Td> Jimmi Simpson </Td> <Td> Criminal Psychologist </Td> <Td_colspan="2"> </Td> <Td_colspan="3"> Guest </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="`"> </Td> <Td_colspan="1"> Starring </Td> </Tr> <Tr> <Td> Mr. Yang </Td> <Td> Ally Sheedy </Td> <Td> Serial Killer </Td> <Td_colspan="2"> </Td> <Td_colspan="3"> Guest </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Woodrow "Woody" Strode </Td> <Td> Kurt Fuller </Td> <Td> Coroner for the SBPD </Td> <Td_colspan="3"> </Td> <Td_colspan="5"> Recurring </Td> <Td_colspan="1"> Starring </Td> </Tr> <Tr> <Td> Pierre Desperaux </Td> <Td> Cary Elwes </Td> <Td> Art Thief </Td> <Td_colspan="3"> </Td> <Td_colspan="3"> Guest </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Curt Smith </Td> <Td> Curt Smith </Td> <Td> British Singer </Td> <Td_colspan="4"> </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> Guest </Td> <Td_colspan="1"> TBA </Td> </Tr> <Tr> <Td> Marlowe Vicellio </Td> <Td> Kristy Swanson </Td> <Td> Lassiter's wife </Td> <Td_colspan="5"> </Td> <Td_colspan="3"> Guest </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Rachael </Td> <Td> Parminder Nagra </Td> <Td> Gus's former girlfriend </Td> <Td_colspan="6"> </Td> <Td_colspan="1"> Recurring </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Maximus </Td> <Td> Mateen Devji </Td> <Td> Rachael's son </Td> <Td_colspan="6"> </Td> <Td_colspan="1"> Recurring </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Harris Trout </Td> <Td> Anthony Michael Hall </Td> <Td> Former Special Consultant for the SBPD </Td> <Td_colspan="6"> </Td> <Td_colspan="2"> Guest </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Betsy Brannigan </Td> <Td> Mira Sorvino </Td> <Td> SBPD Head Detective </Td> <Td_colspan="7"> </Td> <Td_colspan="1"> Recurring </Td> <Td_colspan="1"> </Td> </Tr> </Table> <Tr> <Th> Name </Th> <Th> Portrayed by </Th> <Th> Occupation / Status </Th> <Th_colspan="8"> Seasons </Th> <Th_colspan="1"> TV movie </Th> </Tr>

Who plays shawn as a kid in psych