Guest Stars Aasha Davis as Various Characters Tim Baltz as Various Characters Mort Burke as Various Characters Michael Coleman as Various Characters Maria Blasucci as Various Characters J.T. Palmer as Various Characters Bennie Arthur as Various Characters Craig Cackowski as Various Characters Jenny Slate as Herself (Narrator) Mark Proksch as Himself (Narrator) Tess Lynch as Herself (Narrator) Stephen Merchant as F**kin' President Lincoln Justin Long as Arno Penzias Jason Ritter as Robert Wilson Tony Hale as Edward Cope Christopher Meloni as Othneil Marsh Greg Kinnear as Thaddeus Lowe Jadon Wells as Young Thaddeus Lowe