Peter Parnell is the coauthor, with Justin Richardson, of And Tango Makes Three. He is a playwright whose plays have been produced at the Public Theater and Playwrights Horizons in New York City, the Mark Taper Forum in Los Angeles, and the Seattle Repertory Company, among others. His play QED was produced on Broadway. He has written extensively for television as a producer for both The West Wing and The Guardian; he has also written episodes of Maurice Sendak's series Little Bear. He lives in New York City.

Henry Cole has written and illustrated more than 150 books for children, including Spot, the Cat; And Tango Makes Three; Oink?; and Little Bo in France. He is also the illustrator of With a Little Help from My Friends by John Lennon and Paul McCartney. A former elementary school teacher, he now writes and paints full time.