Gervais rhymes with:
hervey, lurvey, meservey, purvey, servais, survey, turvey, beauvais, calvey, convey, devey, dovey, dunlavey, hervey, hevey, levey, lurvey, mcgarvey, mcvay, mcveigh, mcvey, meservey, mulvey, pevey, purvey, servais, sevey, survey, turvey, vey
Gervais sounds like:
garbacz, garbage, garp's, garps, gearbox, gearboxes, geographic, geographic's, gerbasi, gerbig, gervase, gervasi, gervasio, giraffes, graboski, grabowski, grabs, grabski, graffius, grapage, grapes, graphic, graphics, graphics', graphs, graves, graves's, gravies, gravois, grbavica, greaves, grieves, grievous, griffey's, griffis, gripes, grips, grivas, grooves, groppy's, group's, groupies, groups, groups', grove's, groves, grubaugh, grubbs, grubs, gurevich