<Li> Principal Merrow (Stephen Tobolowsky), Westbridge Middle School's principal, who has very little tolerance for Old Christine's neurotic behavior . (Season 4) </Li> <Li> Dave (James Lesure), a man Barb meets at Richard and New Christine's wedding . Although he originally tries to deport her as he is an INS agent, he later finds a way to keep her in the country because of his feelings for her . He later ends up being afraid of her and hating her personality as their relationship progresses . He proposes to her, believing that she will break up with him, but she ends up saying yes . (Seasons 4--5) </Li> <Li> Max (Eric McCormack), Old Christine's therapist / crush and Matthew's mentor . Christine and Max share a mutual attraction, but Christine decides she needs a therapist more than she needs a boyfriend . Max has had his license suspended multiple times for getting too close to patients, but after he and Christine end their therapist sessions in order to date each other, he proves to be a calm and steady boyfriend . The two become engaged but Christine postpones their engagement so that she can go back to college . (Season 5) </Li> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 13 </Td> <Td_colspan="1"> March 13, 2006 (2006 - 03 - 13) </Td> <Td> May 22, 2006 (2006 - 05 - 22) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> September 18, 2006 (2006 - 09 - 18) </Td> <Td> May 7, 2007 (2007 - 05 - 07) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> February 4, 2008 (2008 - 02 - 04) </Td> <Td> March 31, 2008 (2008 - 03 - 31) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> September 24, 2008 (2008 - 09 - 24) </Td> <Td> May 20, 2009 (2009 - 05 - 20) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 21 </Td> <Td_colspan="1"> September 23, 2009 (2009 - 09 - 23) </Td> <Td> May 12, 2010 (2010 - 05 - 12) </Td> </Tr> </Table>

Who plays max on the new adventures of old christine