What is Marvin's full name in SML?

In SML, which stands for SuperMarioLogan and is now called SML after a rebrand, Marvin's full name is Marvin Thompson. SML is a popular YouTube puppet series created by Logan Thirtyacre that features human-like puppets and characters. Marvin is one of the main human puppet characters, known for being the long-suffering father figure to Jeffy, a goofy and often troublesome character. Marvin's character is portrayed as a middle-aged man who is often stressed, broke, and dealing with chaotic situations caused by Jeffy and other characters like Rose, his girlfriend or wife. His last name Thompson was revealed in various SML videos and on the SML wiki, where characters' full names are listed. For example, Jeffy's full name is Jeffy Thompson, indicating Marvin is his adoptive father, and Rose is Rose Thompson in some continuities. Marvin was originally played by a puppet that replaced Mario after Nintendo cease and desist issues, so Marvin essentially replaced Mario as the main dad character. His full name Marvin Thompson is used in some episodes involving legal documents, school forms, and family storylines, though most videos just call him Marvin. The SML universe has inconsistent canon, but Marvin Thompson is the accepted full name by the fan community and SML wiki as of 2025.

In SML, which is SuperMarioLogan, now known as SML after Nintendo cease and desist, Marvin's full name is Marvin Anthony Thompson, though he is commonly just called Marvin, and is portrayed as Jeffy's father figure and husband of Rose in the SML universe. SML is YouTube puppet series created by Logan Thirtyacre, featuring Mario characters originally then human puppets after rebrand, with Marvin being main character played by Logan's older brother Lance Thirtyacre's puppet, known for being broke, stressed, and dealing with Jeffy's antics. Marvin's full name Marvin Anthony Thompson is revealed in some SML videos and wiki, with Marvin being middle-aged man with brown hair, mustache, and often wearing blue shirt, living in house with wife Rose, son Jeffy, and other characters like Junior, Cody, and Joseph. Marvin's character is known for yelling Jeffy! and being frustrated with Jeffy's diaper and pencil in nose, and for being poor despite working multiple jobs, with running gag about house payment. Marvin is married to Rose in SML canon, though relationship has ups and downs, and he is stepfather to Jeffy, with Jeffy being his adopted or biological son depending on storyline. Marvin's full name includes middle name Anthony and last name Thompson, consistent with SML character naming. So Marvin's full name in SML is Marvin Anthony Thompson, main protagonist of SML series, husband of Rose and father figure to Jeffy, played by puppet in Logan Thirtyacre's YouTube series.