Baby Marvin is a minor character in Baby Looney Tunes and the toddler version of Marvin the Martian. In War of the Weirds, he payed a visit to the babies and Baby Taz befriended Marvin to make him feel welcome.
- War of the Weirds it was the only episode to feature Baby Marvin. His only other appearances were in merchandise and songs.
Minor: Baby Pepe • Baby Marvin • Puppy K-9 • Baby Elmer • Baby Foghorn • Puppy Barnyard • Baby Porky • Baby Wile E. • Baby Road Runner • Baby Gossamer • Baby Duck Dodgers • Baby Instant Martians • Puppy Marc Antony • Baby Sam