<P> Nicholas `` Nicky '' and Alexander `` Alex '' Katsopolis , ( played by Daniel and Kevin Renteria as babies during season 5 ; Blake and Dylan Tuomy - Wilhoit as toddlers for seasons 6 -- 8 ) are the twin sons of Jesse and Becky Katsopolis . The two were born in the season five episode `` Happy Birthday , Babies , '' on the date of Michelle 's fifth birthday . Becky named Alex after a high school teacher who inspired her to venture into a career in journalism , while Jesse chose to name Nicky after his father , for giving him great hair . They have strawberry - blond hair and are fun - loving toddlers , with minor distinctions between them . Nicky is more quiet and sweet , while Alex is more outspoken and mischievous . They often repeat each other 's words . </P>
<P> Nicholas `` Nicky '' and Alexander `` Alex '' Katsopolis , ( played by Daniel and Kevin Renteria as babies during season 5 ; Blake and Dylan Tuomy - Wilhoit as toddlers for seasons 6 -- 8 ) are the twin sons of Jesse and Becky Katsopolis . The two were born in the season five episode `` Happy Birthday , Babies , '' on the date of Michelle 's fifth birthday . Becky named Alex after a high school teacher who inspired her to venture into a career in journalism , while Jesse chose to name Nicky after his father , for giving him great hair . They have strawberry - blond hair and are fun - loving toddlers , with minor distinctions between them . Nicky is more quiet and sweet , while Alex is more outspoken and mischievous . They often repeat each other 's words . </P>
who plays nicky and alex in full house
who plays nicky and alex in full house
Daniel and Kevin Renteria as babies during season 5 ; Blake and Dylan Tuomy - Wilhoit as toddlers for seasons 6 -- 8
Daniel and Kevin Renteria as babies during season 5 ; Blake and Dylan Tuomy - Wilhoit as toddlers for seasons 6 -- 8