Hyfforddwyd Maggie yn The Arts Educational School. 

Mae ei chynyrchiadau gyda Theatr na nÓg yn cynnwys Nye and Jennie, Eye of the Storm, taith eang y DU o Tom, A Story Of Tom Jones, The Musical, Salsa!, The Bankrupt Bride, Cyrano, Stowaway, The Princess and the Hunter a Me A Giant.

​Mae ei chredydau theatr eraill yn cynnwys Jackie The Musical (Gardyne Theatre, Dundee) Summer Holiday, Grease, Hairspray (SYP Wyvern Theatre) Beyond Borders (National Youth Theatre of Wales) The Canterbury Tales (Mappa Mundi) Oh What A Lovely War, The Mabinogion (Theatr Clwyd) Be My Baby, A Woman In Mind, Martha, Josie And The Chinese Elvis, Oh What A Lovely War (Salisbury Playhouse) Sweet Charity (BAC) Hansel and Gretel (Welsh National Opera and Nationale Reisopera) The Marriage Of Figaro (Opera North) The Price, Eliza And The Swans, Deep Waters, The Fizz, Good Intentions, Original Features, Rain Dance, The Whale Savers, Shadowtracks (W11 Opera). Mae Maggie wedi coreograffi dros ugain o sioeau Nadolig i theatrau ar draws y DU yn cynnwys saith pantomeim roc ‘a’ rôl yn Theatr Clwyd a The New Wolsey, Ipswich.
Ar gyfer y teledu, mae Maggie ar hyn o bryd yn gweithio ar raglen i’w dangos y Nadolig yma ar S4C a elwir yn Panto Shane A’r Belen Aur. Mae ei chredydau eraill yn cynnwys The Crust (BBC) Henry VIII gyda Ray Winstone a Helena Bonham Carter (Granada) ac In A Land Of Plenty (Talkback Productions).

Roedd Maggie yn gynorthwyydd coreograffi ar Charlie And The Chocolate Factory gan Tim Burton (Warner Bros),De-Lovely (MGM/Winkler Films)yn serennu Kevin Kline ac A.I.Artificial Intelligence gan Steven Spielberg (Dreamworks).