<Li> Matthew Lewis Royer as Chet Marcus, Shelby's brother who is the twin brother of Bret . </Li> <Ul> <Li> Mary Passeri as Astrid, the mother of Shelby, Bret, and Chet . </Li> <Li> Kevin Symons as Norm, the father of Shelby, Bret, and Chet . He works as an accountant at GloboDigiDyne and later gets promoted to the company's Pelican Ball Room . </Li> <Li> Madison Hu as Marci, a friend of Cyd and Shelby who is always relaxed . </Li> <Li> Larry Joe Campbell as Mr. Doyle, a gossip - loving teacher at West Portland High School who teaches science and driver's education . </Li> <Li> Nora Dunn as Janet Smythe, an entrepreneur and the CEO of GloboDigiDyne who has invented many things in her life, starting with wireless objects . However, she is an evil mastermind who seeks to hunt down Cyd and Shelby and plans to figure out their time travel abilities and alter time so that she can take over the country . She is eventually defeated by future Cyd and Shelby and taken away by them to be imprisoned with other people like her . </Li> <Li> Bryana Salaz as Daisy, a time - displaced princess from the 1500s who ended up in Cyd and Shelby's time . Whenever Cyd and Shelby do a group hug with her, Cyd and Shelby end up briefly transported back in time to where Daisy is imprisoned by an unidentified person . During her time in the present, she lives with Naldo while trying to adapt to modern day cultures . It was later revealed that the unidentified person had trapped Daisy in the tower to keep her from being taken by Sebastian . </Li> </Ul> <Li> Mary Passeri as Astrid, the mother of Shelby, Bret, and Chet . </Li> <Li> Kevin Symons as Norm, the father of Shelby, Bret, and Chet . He works as an accountant at GloboDigiDyne and later gets promoted to the company's Pelican Ball Room . </Li>

Who plays shelby's mom in best friends whenever