Otto Ratburn in "1001 Dads"
|Family||Olga Ratburn (mother)|
Hans Ratburn (father)
Lisa Ratburn (wife)
Rodentia Ratburn's child (grandchild)
|Book debut||Arthur and the 1,001 Dads|
|Cartoon debut||"1001 Dads"|
|Voiced by||Arthur Holden|
When Otto was younger, as seen in a flashback, he looked much like his son, but with longer brown hair. He was wearing half-glasses, a white shirt, khakis with suspenders, and dark gray loafers.